80’s dirty Fingers pickup ID

[Rhoadsfan11]

Good afternoon. I recently picked up two early 80’s Gibson dirty fingers pickups. One of them I have already Id’d as authentic but the second one I’m a bit of a miss on. It came in a blue factory Gibson box that states it was made for yamanos music in Japan, but there is neither a stamp or ink code on the baseplate. Can anyone help me authenticate this?

 

[hamerfan]

The backplate looks different to the plates in the beginning 80ies (Shaw period), those had two little cut-ins besides the tab and a patent number. Maybe they had different backplates for the 12 screw Dirty Finger. Everything else looks good gor me like the solder blob on the lead cut out and the push back wire for late 80ies to beginning 90ies.

 

[Rhoadsfan11]

The backplate looks different to the plates in the beginning 80ies (Shaw period), those had two little cut-ins besides the tab and a patent number. Maybe they had different backplates for the 12 screw Dirty Finger. Everything else looks good gor me like the solder blob on the lead cut out and the push back wire for late 80ies to beginning 90ies.

I think you’re right about the back plates. I saw a Gibson add from 87 still advertising these pickups. I was under the impression that they were discontinued mid 80’s which means these were in production for about 10 years give or take. My thought was that maybe the replacement pickups Gibson offered weren’t dated and stamped. In my research I’ve also not been able to find imagine of one of these blue boxes made for Yamano music. I bought this NoS from Japan last week for about $200