I have two former police guns.
The first is a Reg. Mag. that went to the Butte, MT police dept in 1937. This is the one I found in the pawn shop.
The second is a 66 no dash That I bought from the nephew of a retired IA highway patrolman. The Highway patrolman bought this from someone else.
I think it is either a Washington Highway Patrol gun or Wyoming Highway Patrol gun. If anyone know which and any history I sure would appriciate it.