This model is designed at 1:100 scale, for 15mm gaming.
The zip file includes STLs for the hull, main turret, AA turret (rear port side), and the MG turrets, of which three will need to be printed.
The A1E1 Independent was an experimental multi-turreted “landship” style tank, developed by the UK between the World Wars. Only one prototype was built, and it was not put into production. It was, however, very influential on German and Soviet tank design in that period.
The prototype now resides at the Bovington Tank Museum.