The Hermann H. Heiser Manufacturing Co. made this beautiful holster from Premium Skirting Leather. This holster is properly marked with the H. H. Heiser Maker Denver Colo. Trademark inside a long oval, which dates this holster pre. 1900. You will note it has no safety strap as many Heiser holsters have, giving it the feel and appearance of an early frontier holster.
The leather is fully alive and will provide a century of wear ready to use.