The "early" Llama Model 1-A is discribed as:...a 7.65(.32acp) blowback design introduced in 1933. Magazine cap= 7 rds, Barrel=3.62" OAL= 6.3" weight approx. 19 oz. Other than that, the markings on the slide help determine the DOM and sometimes the exact model.Prior to 1936 the slide is marked:"GABILONDO Y CIA ELOEIBAR (ESPANA) and caliber markings. After 1936:LLAMA GABILONDO Y CIA ELOEIBAR (ESPANA) and caliber markings. Current markings: LLAMA CAL or GABILONDO Y CIA VITORIA (ESPANA) and the large Llama logo. Contact info: Llama Gabilondo Y Cia, Portal De Gamarra 50 Vitoria Alava, E-01080 Victoria, Spain If you wish to order a part(barrel) from our host, it would be best to send the old barrel and a tracing of the slide markings into the company.