“CARPENTER & YOUNG PATENTEES” early 1800's Front Door Box Lock

“CARPENTER & YOUNG PATENTEES”
(signed around British lion & unicorn insignia, on applied brass button)
Georgian/Regency period, early 1800's circa
8” x 5-1/4” FRONT DOOR LOCK
with two well-figured circular brass Sheraton type knobs
Good old as-found Condition : mechanism needs some work
price...................................................... $ 1,275.