That for the hatch with Sdkfz

[Daniel Markgraf]

Size 73x38X15 sm.

German sdkfz 250? 251? or wat?

[steverobertsbbc]

I reckon what you have there is a rear engine deck hatch from a StuG III Ausf A - E.

It's a direct dimensional match as near as I can get from scaling up from the 1:35 scale drawings in Muller & Zimmerman's two volume guide to the vehicle.