There are several period references to hammer stalls. Here is one.
-77-
(August 28, 1762)
LIEUT. ALEXANDER 3AILLIE TO COL. HENRY BOUQUET
[3. 11., Add. MSS. 21648, f. 341, A. D. S.J
Return of the Weight of the Cloathing, Arms, Accoutrements,
Airjr.unition, Provision, Necessary's &C? of a S
upon a...