Rule

A.A.U. Four-Wall Hardball Rules · American four-wall hardball (1930s-40s)

Rule 34

Historical rulebook: not the current rules. The current rules are here (USHA Four-Wall Rulebook, as of 26 January 2025).

Hands or fingers may be covered but only with soft material or soft gloves of kid or cloth. No hard material shall be used on any part of either hand.

Mentioned here