Bost, 12 ga. sidelock side by side shotgun.  Serial #6779, mfg. Eibar, Spain.  Excellent condition.  28” barrels have shiny bores with 85% blue.  2 ¾” chambers, choked MOD & FULL.  Double triggers and extractors.  Receiver and upper tang have nice coin silver finish with engraving.  Sidelocks and trigger guard have 80% blue finish with some light scratch marks.  Beavertail forearm and rounded pistol grip stock have very good glossy finish with extensive checkering.  Gold plated triggers and Bost recoil pad.  LOP is 14 3/8”.  Action locks up tightly with top lever well to right.  Sidelocks  have cocking indicators and work fine, but left side firing pin is hanging up a bit.  Very nicely made Spanish double!