Bit Stock tools

The photos show an angle device by Robert Marples, Sheffield. This drawing (and some that may be used in future) is courtesy of Dr James E. Price.

WOOD, Albert A. , Patent: 662683, Type: Hollow Auger, Date: Nov 27, 1900

BONNEY, C.S., Patent: 105896, Type: Hollow Auger, Date: Aug 2, 1870

SMITH, Heston J., Location: Three Tons, Pennsyslvania, Patent: 7689, Type: Hollow Auger, Date: May 22, 1877, Reissued: March 30, 1880