Cast iron boring bar and boring head; square thread spindle; 5 spur wheels; Cast iron hand wheels and 2 cast iron pedestals, allegedly from the Bersham Works of John Wilkinson. Cast iron boring bar and boring head circa 1775
Spur gear found with indistinct inventory number, probably associated with feed mechanism from boring bar for John Wilkinson's cylinder-boring mill, Bersham, 1775 Spur gear found with indistinct inventory number circa 1775