The description below is taken from the Airfix catalogue this kit was first seen in. There is also extra information underneath the main catalogues description including the changes to the name of this kit in the catalogues.
Airfix Catalogue description:Abbot Self-propelled Gun with firing mechanism and shells. This exciting new range of armoured vehicles and accessories has been produced in perfect 1/32 scale for use with the range of Airfix 1/32 scale soldiers - Taken from the 8th edition catalogue (1970)
Airfix Series (first appearance): 1 Rarity of early version: Scarce First Issued: 1971
This kit appeared in these catalogues:
8th Edition (1970) Ref: 1762 9th Edition (1971) Ref: 1762 10th Edition (1973) Ref: 51500-3 11th Edition (1974) Ref: 51500-3 12th Edition (1975) Ref: 51500-3 13th Edition (1976) Ref: 51500-3 14th Edition (1977) Ref: 51500-3 15th Edition (1978) Ref: 51500-3 16th Edition (1979) Ref: 51500-3 17th Edition (1980) Ref: 51500-3
Just some of the kits listed...