Tell us what your H&R is, in the Notes below, and we can get grips like the ones pictured to fit.
The set pictured are of genuine gutta-percha (hard rubber), made for the break-top revolver made by Harrington & Richardson Arms Co. of Worcester, Mass. It was known as the “Automatic Ejecting” model, or the “Model 10.”
It was a 5-shot double action revolver made around the turn of the century.