Small trial piece for calculating machine invented by Charles Stanhope in 1777 with case, see Inv. 1872-137, probably made James Bullock. Small trial piece for calculating machine invented by Charles Stanhope in 1777 with case 1777
Small trial piece for calculating machine invented by Charles Stanhope in 1777, see Inv. 1872-137, probably made James Bullock. Small trial piece for calculating machine invented by Charles Stanhope in 1777 1777