From left to right; a Matchbox ‘Models of Yesteryear’ first issue (Y7A) (1957) 4-ton Leyland lorry (Jacobs livry) which if the ‘books’ are correct was replaced almost immediately by Y7B, Mercer Raceabout.
Next, in the 1-75 series, No. 49a (first issue) M3 personnel carrier, produced 1958 to 1967. Good condition apart from missing tracks (since replaced).
Second from right 1-75 series No. 21a Bedford Coach produced from 1956 to 1958. This first issue was replaced by a slightly larger but otherwise identical, version in 1958. (69mm as against 55mm). Matchbox seem to make a habit of replacing models with slightly larger ones for reasons not immediately clear. Perhaps the moulds wore out and it was done for logistic and financial reasons. Some of the first issue were very small indeed; possibly too small for the young market they were aimed at?
Lastly a 1-75 series London Routemaster No. 5d. Despite the ‘D’ this was the fifth variation of ‘No.5’. THe first three were AEC Regent models (numbered usually as ‘RT’xxxx by London Transport). Like the coach, the ‘5b’ (1956-1961) was basically a slightly enlarged version of 5a (1954-1956) and was itself replaced by another further enlarged Regent model from 1961 (No. 5c). However, a Routemaster model was also introduced in 1961 and also designated 5c. In 1966, the 5d (again a larger model) was introduced with body colour grille and uprated internal detailing. It ran till 1969 (replaced by the Lotus Europa (aka Lotus 47).
ack: John Ramsey; “British Diecast Model Toys”