Friction tape is what was used on all those single barrel shotguns that had a split stock at the wrist. Also on all those single barrel shotguns that didn't have a split stock at the wrist but that Grandpa thought might at some time in the future and got reinforced with a half roll of friction tape. The rest of the roll was wrapped around the handle of a ball peen hammer that had the wood all beat up just under the head, it stopped the wood from getting beat up.
Friction tape was the duct tape of the 1800's, I think. Wouldn't stretch like electrical tape, took several years to dry out and quit leaving gum all over your hand, left marks that took several more years to wear off.
Didn't know you could still buy it, haven't seen it in a hardware store in years.
Dan R