Looks like a '70s Gibson 'Nashville' Tun-O-Matic found on many Les Pauls, SGs, etc. The six individual bridge saddles are lightly slotted in the center. I measured 2.884" mounting centers, E to E 2.052". Overall length of bridge 3.320", depth .542", bridge base .413" at the thickest point, bottom has a concave arch. Made in Japan by Gotoh; there's a Gotoh logo cast into the bottom. Brand New. Genuine Gretsch 0060882000. UPC 717669207014.