I had a question from a customer that I could not answer, this was when the late type mounts for the cupola periscopes were fitted I found the answer in "Germany's Tiger Tanks - VK45.02 to Tiger II" by Jentz and Doyle.
The first type mounts were fitted until mid July 1944. From then on the second type mounts were used. The cupola was welded to the turret roof until August 1944, from then on it was bolted to the roof from the inside by seven curved plates. If your model is based after August 1944, no weld lines around the cupola.
First type periscope mounts used until mid July 1944
Second type periscope mounts used from mid July 1944
Depending on information on the other early type and if anyone can confirm this was the type used in the KT cupola I may also make this type.
I have updated the part numbers for the Tiger 1 and 2 cupola sets for ease of ordering.
TT37A-1/2E Tiger 1 and 2 Late Cupola Assembled. T1 Late-T2 Early $550.00
TT37K-1/2E Tiger 1 and 2 Late Cupola Kit .T1 Late-T2 Early $350.00
TT37K1-1/2E Tiger 1 and 2 Armortek Upgrade, Kit T1 Late-T2 Early $260.00
TT37A-2L Tiger 2 Late Cupola Assembled. T2 Late Jul 44 on. $550.00
TT37K-2L Tiger 2 Late Cupola Kit .T2 Late Jul 44 on. $350.00
TT37K1-2L Tiger 2 Armortek Upgrade, T2 Late Jul 44 on. $260.00
Regards
Mike