AV IV Bristol 173, Westland Sikorsky S-51 and Autogiro C30
|Name||Bristol 173, Westland Sikorsky S-51 and Autogiro C30|
|First year published||1953|
|Number of cards||6|
|Size of cards||9 x 13 cm|
|Description||First and only printing was in 1953 at 2/6d.
Large stocks passed down the line to the Watford Model Supply Company in 1971.
The cards are exotically printed in silver, orange and blue.
Micromodels London has also printed this model as a packet with cards and a wrapper, but also as part of their calendar 2017.