Antique 1871 Wheeler & Wilson #1 Pulley Drive Sewing Machine Head

Worn and rusted in a few spots but in pretty good shape for an item over 150 years old.

Etchings on plate read:

WHEELER & WILSON MF'G. CO.
BRIDGEPORT CONN.
A.B. WILSON'S PATENTS
NOV 12th 1850 AUG 12th 1851
JUNE 15th 1852 DEC 19th 1854
No 744874