Fixed sights, three-line markings on the top strap, checkered folding hammer spur, knurled cylinder pin.

Blade and notch sights, standard markings, checkered hammer.

Fixed sights, with the standard four-line markings on the top strap, checkered hammer, knurled cylinder pin.

Early style markings, with the single 1886 date on the barrel. Fixed sights, folding hammer spur.

Made from 1883 to 1940. Fixed sights, makers marks on the upper left barrel flat, and "THE AMERICAN/ DOUBLE ACTION" on the top strap. Checkered hammer, smooth trigger.

Made from 1884 to 1941. Fixed sights, with the Harrington & Richardson address on the barrel and "YOUNG AMERICA/ DOUBLE ACTION" on the top strap. Casehardened trigger and hammer, blue trigger guard.