Berry's Coaches of Bradford-on-Tone, Taunton NYD509, prototype AEC Regal IV (chassis U137525) with Duple C37C body, new in 1950. The body was effectively a prototype for what became the Duple Ambassador. (Peter Relf)

1949 AEC Regal IV prototype UMP227 seen at Cobham Bus Museum on October 26th 2008.
(Chris Stanley)

Work in progress on prototype Regal IV UMP227 seen on March 15th 2009. Now owned by a consortium of Cobham bus museum members and to be restored to 1950 green & white livery.
(Chris Stanley)

Ipswich Regal IV (BPV8) seen at the Cardiff Rally 1983. (E Somers via Ray Evans)

Seen at Heaton Park in September 1989 is 1950 Burlingham-bodied AEC Regal IV EFK760, chassis 9821E506, one of two new to Burnham of Worcester, the other being EFK761. (John Law)

Bee Style EFK760, 1950 AEC Regal IV/Burlingham Seagull seen with 1948 Bedford OB/Plaxton EAJ679 at Stump Cross in August 1990. (John Law)

Brown's Blue Coaches of Markfield 43 (GUT399), 1951 AEC Regal IV 9821E462/Yeates C41C. (Chris Stanley collection)

Brown's Blue Coaches of Markfield 44 (GUT400), 1952 AEC Regal IV 9821E545/Yeates C41C. (Chris Stanley collection)

P.J. Card & Son Ltd of Devizes owned AEC Regal IV HAM702 with Yeates C41C body. Photographed in Devizes 7/51. (David Simpson collection)

Lewis Motors of Mylor Bridge JAA888, 1951 AEC Regal IV 9821E031 with Windovers C39C body, new to Coliseum Coaches of Southampton. Seen at The Moor in Falmouth on 2/8/61. (Peter Relf)

Blue Ensign LDT210, 1952 AEC Regal IV 9821E1421/Burlingham C37C. (John Law collection)

A R Harling LUC381, 1951 AEC Regal IV 9821E323/ECW C39F, former LT private hire RFW6. At the yard in 1965. (Bob Martin)

A R Harling LUC386, 1951 AEC Regal IV 9821E328/ECW C39F, former LT private hire RFW11. At the yard in 1965. (Bob Martin)

London Transport RFW13 (LUC388), 1951 AEC Regal IV 9821E330 with ECW C39F body. Location and date not recorded. (Peter Relf)

A R Harling LUC389, 1951 AEC Regal IV 9821E331/ECW C39F, former LT private hire RFW14. At the yard in 1965. (Bob Martin)

St Thomas' Hospital LUC389 (ex-RFW14) crossing Westminster Bridge. (Chris Stanley collection)

LT Private Hire AEC Regal IVs RFW14 (LUC389, left) & RFW6 (LUC381, right) were both present at the 'RF50' gathering held at Redhill Road near Cobham Bus Museum on May 28th 2001. (Damon Cross) #1

LT RFW14 (LUC389, left) & RFW6 (LUC381, right), 1951 AEC Regal IVs with ECW coachwork, seen at 'RF50' near Cobham Bus Museum on May 28th 2001. (Damon Cross) #2

ECW-bodied AEC Regal IVs RFW14 (LUC389, left) & RFW6 (LUC381, right) were both present at the 'RF50' gathering held at Redhill Road near Cobham Bus Museum on May 28th 2001. (Damon Cross) #3

LT RFW14 (LUC389), 1951 AEC Regal IV 9821E331/ECW C39F seen at the 'RF50' gathering with RFW6 on May 28th 2001. (Damon Cross) #4

Hebble of Halifax 32 (LWT148), 1952 AEC Regal IV 9821E1232 with Whitson C41C body, one of two (with LWT147) acquired from Ripponden & District in 1957. (Peter Relf)

Tilling LYM729 at Brentwood Eastern National depot, surrounded by a City-ordered Leyland/Burlingham, Bristol JO, K and LD with Daimler CVD6 and various choice cars all in shot. (via Chris Stewart)

Rear view of rebodied LYM729. (Peter Snell via Chris Stewart)

LYM730 and a Tilling OB in Parliament Square. (via Chris Stewart)

Tilling publicity shot of LYM731 with original body. From the Ken Taylor collection, Eastern National Brentwood. (via Chris Stewart)

LYM732 with original RFW-style ECW body. (via Chris Stewart)

Rebodied LYM732 pretending to be a Crosville MW, pursued by an East Kent Reliance. (via Chris Stewart)

Denyer Bros LYM732 somewhere near the Bath & West show site in June 1971. (Ron Denyer via Chris Stewart)

Tillings AEC Regal IV LYM732, one of five originally with ECW 'RFW' style bodies, later rebodied 'MW' style. All five were acquired by Denyer's of Stondon Massey, staying on the premises many years after withdrawal until a magazine article in early 2002 precipitated their removal. LYM732 is the first to be fully restored. Showbus 16/9/07. (NF)

Tilling LYM732, 1951 AEC Regal IV 9821E279, looking superb at Duxford Showbus after a five-year restoration. (Richard Haughey)

Former BEA airport coach MLL722 photographed in Ashford on April 10th 2009.
(Chris Stanley with permission)

Interior & rear views of BEA airport coach MLL722 taken on April 10th 2009.
(Chris Stanley with permission)

1953 AEC Regal IV/Park Royal HDC37C BEA Airport Coach MLL740, the last of the type to be withdrawn. Photographed here in the grounds of the Cobham Bus Museum on August 27th 2007. Inset shows MLL740 in the final BEA livery. (Chris Stanley; inset Richard Haughey)

Not often seen is the interior of a BEA Airport coach. AEC Regal IV MLL 740 photographed at Brooklands on the Cobham pre-hibernation day on October 28th 2007. (Chris Stanley)

Interior of BEA Airport coach MLL740 looking forward from the rear raised area. Brooklands, October 28th 2007. (Chris Stanley)

Interior of BEA Airport coach MLL740 looking forward from the rear seats in the upper raised area. Brooklands, October 28th 2007. (Chris Stanley)

Interior of BEA Airport coach MLL740 looking down at the driving controls. Brooklands, October 28th 2007. (Chris Stanley)

1953 AEC Regal IV/Park Royal BEA Airport Coach MLL740 arriving at Showbus. (Dave Gothard)

Former BEA AEC Regal IV MLL748 seen by Kevin Shutler at the Stonehenge summer solstice in 2003. (via Richard Haughey)

BEA 4RF4 MLL753 in Berlin is being restored to its former glory. (Enrico Kobilinski)

Timpson's of London SE6 MXB465, 1952 AEC Regal IV 9821S205/Duple C41C. (Chris Stanley collection)

NUO686, 1953 AEC Regal IV 9822S1630/Willowbrook C41F, new as Grey Cars of Torquay TCR686 (Devon General coaching subsidiary) seen at the BOAC Air Terminal at London Victoria. (Chris Stanley collection)

Devon General (Grey Cars) TCR687 (NUO687), 1953 AEC Regal IV 9822S1631/Willowbrook C41F. Scottish-registered 1948 Humber Super Snipe or Pullman parked behind. Riverside, Dartmouth, September 1957. (Peter Relf)

Bowerman's Tours of Taunton NUO690, 1953 AEC Regal IV 9822S1634/Willowbrook C41F new as Devon General (Grey Cars) TCR690, to Bowerman's 2/62. Bretonside Bus Station, Plymouth, August 2nd 1962. (Peter Relf)

Hedingham & District of Sible Hedingham PPE462, AEC Regal IV 9821E501 with Burlingham C39C body. One of a pair (PPE462/3) new in 1951 to Cooke, Stoughton, Guildford. (Peter Relf)

The enigmatic South Midland AEC Regal IV SFC571 with ECW Light Saloon body seen at Gloucester Green in April 1962. Chassis 9821E182 was new in early 1951 but not bodied until 1952. (MD Shaw via Barry Hitchcox)

Oxford Bus Museum 16/10/05: 1952 Oxford AEC Regal IV SFC610. (Ray Evans)

Scotts Greys Regal IV SHN301 seen at the Whitley Bay rally on 1/8/04. (Lance Blackman)

Viceroy of Saffron Walden UNO408, 1952 A.E.C. Regal IV 9821E512 with TransUnited C41C body. After withdrawal passed to Simplex of Cambridge (non psv) in 6/67. (Peter Snell collection via Chris Stewart)

Acquired by the Perth (WA) Museum is MTT 244, AEC Regal IV 9823E2408, the seventh new bus put into service by MTT and only the second to have monocontrol. What has been amazing about finding 244 is that, apart from the addition of a bullbar, it has escaped re-modelling of the front and retains the original side lights, 3-piece grille & shallow windscreen. (Dave Urquhart/inset Nick Pusenjak)

Christchurch Transport Board 290 (DV401), 1952 AEC Regal IV 9821E1150 with Crossley B42D bodywork, seen at Ferrymead Heritage Park on 12th May 2007. (Howard Pettigrew) 1 of 2

Christchurch Transport Board 290 (DV401), 1952 AEC Regal IV 9821E1150 with Crossley B42D bodywork, seen at Ferrymead Heritage Park on 12th May 2007. (Howard Pettigrew) 2 of 2

North Shore Transport 151 (EZ2662), 1952 AEC Regal IV 9821E535/NZMB B44D, originally Auckland Transport Board/Auckland Regional Authority 56/356, seen at the inner Auckland City departure point in Albert Street ready for departuture over the harbour bridge to the Shore. 20th May 1971. (Peter Trevor)

Auckland Transport Board 49, 1952 AEC Regal IV demonstrator chassis 9821E293/NZMB B44D, seen when new. Renumbered 349 by the Auckland Regional Authority, then to North Shore Transport as no. 69 (Peter Trevor collection)

North Shore Transport of Auckland NZ 69 (EZ2695), 1952 AEC Regal IV demonstrator chassis 9821E293/NZMB B44D, originally Auckland Transport Board/Auckland Regional Authority 49/349. (Peter Trevor)

North Shore Transport of Auckland NZ 74 & 150, AEC Regal IVs 9821E537 & 536/NZMB B44D, (EZ2696, EZ2661) originally Auckland Transport Board/Auckland Regional Authority 350 & 355. (Peter Trevor)

Lewis Motors of Mylor Bridge, Falmouth, Cornwall BYJ11, 1951 AEC Regal Mk IV 9821E339/Windovers C41C (originally C39C), new to Dickson of Dundee. Interesting front hub cover arrangement. (Chris Stanley collection)

Lewis Motors of Mylor Bridge, Falmouth, Cornwall BYJ11, 1951 AEC Regal Mk IV 9821E339/Windovers C41C, seen in Falmouth on August 9th 1961. (Peter Relf)

The Bus Preservation Society of Western Australia maintains former MTT Perth AEC Regal VI 654 at Whiteman Park. The "cherished" rego 1BPS·654 is in the current format standard for all WA vehicles. The original govt plate is displayed in the windscreen. (Andy & Jodi Wright)