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Sample / iron / knot, tied cold Sample / iron / knot, tied cold

Illustrations of Cast & Malleable Iron, Knots tied cold (specimen of Bower's oxydised iron), two wrought iron samples tied in a knot

Screw gimlet Screw gimlet

Screw gimlet, with the screw formed, one of four specimens mounted on a board illustrating the stages in the manufacture of a carpenter's tool

Screw gimlet Screw gimlet

Screw gimlet, pointed and sharpened, one of four specimens mounted on a board illustrating the stages in the manufacture of a carpenter's tool

Screw gimlet Screw gimlet

Screw gimlet, polished and finished, one of four specimens mounted on a board illustrating the stages in the manufacture of a carpenter's tools

Medal blank Medal blank

One of a collection of items illustrating die engraving and medal stamping, from Joseph Moore, Birmingham, 1867 - a blank for a tin or white metal medal

Medal blank, skimmed or turned Medal blank, skimmed or turned

One of a collection of items illustrating die engraving and medal stamping, from Joseph Moore, Birmingham, 1867 - a skimmed or turned tin blank for a medal

Medal, unfinished Medal, unfinished

One of a collection of items illustrating die engraving and medal stamping, from Joseph Moore, Birmingham, 1867 - a struck tin medal, unfinished

Medal, unfinished Medal, unfinished

One of a collection of items illustrating die engraving and medal stamping, from Joseph Moore, Birmingham, 1867 - an edged tin medal, unfinished

Medal Medal

One of a collection of items illustrating die engraving and medal stamping, from Joseph Moore, Birmingham, 1867 - a finished tin or white metal medal

Medal blank Medal blank

One of a collection of items illustrating die engraving and medal stamping, from Joseph Moore, Birmingham, 1867 - a blank for a copper medal

Medal, struck, unfinished Medal, struck, unfinished

One of a collection of items illustrating die engraving and medal stamping, from Joseph Moore, Birmingham, 1867 - a struck copper medal after the first blow

Medal, struck, unfinished Medal, struck, unfinished

One of a collection of items illustrating die engraving and medal stamping, from Joseph Moore, Birmingham, 1867 - a struck copper medal after the second blow

Medal, struck, unfinished Medal, struck, unfinished

One of a collection of items illustrating die engraving and medal stamping, from Joseph Moore, Birmingham, 1867 - a struck copper medal after the third blow

Medal, struck, unfinished Medal, struck, unfinished

One of a collection of items illustrating die engraving and medal stamping, from Joseph Moore, Birmingham, 1867 - a struck copper medal after the fourth blow

Measuring machine, Whitworth Measuring machine, Whitworth

Measuring machine which measures lengths of up to 12 inches and detects a difference of 1/10,000 of an inch, made by Sir J. Whitworth & Co of Manchester in 1879

Gravity piece, steel / feeler Gravity piece, steel / feeler

Steel gravity piece or "feeler"