I have two pickups lying around.
One is a dimarzio in a sort of odd p90 shape. The kohms reading is of approx 12.8.
The other is a SD. I have had trouble getting a clear reading on it last time I tried but believe it's around 16Kohms.
I contacted both dimarzio and SD. Dimarzio could not ID it but think it could have come off an old yamaha. Apparently, they provided pickups for them in the late 80s early 90s.
SD did not reply...
I am not expecting anybody to ID the dimarzio, unless I get really lucky. But maybe someone has an idea regarding the SD.
Pics should be attached (if I got it right):
The Dimarzio looks like one of the ones they made OEM for Yamaha on the Amir Derakh signature, the AES AD6:
How old is it? No idea on the Duncan, sorry.