Genuine Gretsch Nickel Dynasonic Neck Pickup. Latest reissue of the '50s Gretsch DeArmond pickup! Single coil DynaSonic™ pickups used in many Gretsch® hollow and solid body guitars. I measured 7.53K on a sample pickup. Yes, this will fit your '50s Gretsch exactly. Also fits new Gretsch guitars distributed by Fender Musical Instruments. Please note sale is for one pickup, the photo shows top and bottom views. Brand New. Genuine Gretsch 0061001000. UPC 717669207113.