Turn of the century Swedish design of semi-automatic shotgun utilizing a unique interior recoil system. Blued barrel and frame with walnut furniture. Stock features cheek-rest and round-style grip with checkering, significant damage to toe. Checkered handguard is slightly loose and rattles in retention caps. Blued barrel and frame, front bead is misaligned favoring right. Mechanical function seems fine although springs are incredibly weak. The left side of the frame reads Automat System Sjogren Patent. The right side reads Haandvaabenvaerkstederne Kjobenhavn beneath a crown proof. Overall fine condition with wear to the finish throughout. Bore is in fair condition with rust-spots. Caliber: 12 Gauge, BBL: 28", OAL: 48 1/4", S/N: 2414.