Protective covering for an injured thumb

Usage examples of thumbstall.

Hickson was sewing up the frayed edge of his leather thumbstall which protected his hand when a cannon was swabbed out.

Hickson held the thumbstall close to his right eye to judge the neatness of his stitching.

The sudden compression of air as the rammer thrust with the fleece could explode the residues of unburnt powder that was caked to the breech walls, so a gunner, wearing a leather thumbstall, pressed his thumb over the vent to stop the airflow.