This nice little M. Ugarteburu sidelock 20 gauge double barrel shotgun popped up on the web today. It looks pretty original. With 27 1/2″ barrels, 2 3/4″ chambers, and weighing in at just over 6lbs, it looks like it would make a great field gun. The best thing about it is the price: $1,150.
Martin Ugarteburu sidelock 20 gauge double barrel shotgun was a Spanish maker active through the 1960s and into the ’80s. He made everything from entry-level boxlocks doubles to high-grade sidelocks side by sides.