Four variants of 15mm T1 Cunningham are available for sale from Quick Reaction Force store.
Here are 3D renders of all 4 variants. From above to bottom:
T1 (1926) Cunningham (sloped turret, short gun, early hull)
T1E1 (1927) Cunningham (sloped turret, short gun, late hull with catwalks)
T1E2 (1929) Cunningham (cylindrical turret, short gun, late hull with catwalks)
T1E3 (1930) Cunningham (cylindrical turret, long gun, late hull with catwalks) – up gunned T1E2 modification
Please note, that T1 from first picture is a hybrid with the early war hull but late turret with long gun