Can't tell for sure. Can you get the serial number off the D9 model?
Winch serial number that is.....
OM I,m thinking if it,s from an early D9 18A or 19A that it no doubt is a 30 cable control & probably a 54C or a 57E serial number.
Yes it could be a 24 control & the 8D Serial Number came out in 1945 so it,s in about that era.
The D7 is a #24 unit serial numbers 8D501-up
There is also as serial number 33E1 #24 unit of about the right era.
The #30 27E1 & 54C1 came a little later.
Having the serial number would pin it down.