llama 1911 9mm parabellum
Three vent first series starting in 1955 and being made thru 1970.
Model E-IXA two vent rib second series which started in 1970. The E is for engraved . I think the deep relief engraving was discontinued at this time because it does not show up in my catalog.
> In 1954 the XA changed to have the rounded back on the frame and grips as well as a magazine that was large base. Both the solid rib and the vent rib were used