Mason's wedge (iron)
1874
Patent wedge for coal, mkd. IV-22 D.S.&.A.
Miner's wedge 2lb.
Slider wedge
Miner's iron wedge
Four wooden wedges, used by Joseph Bramah in his workshop
Coal splitting wedge.
Coal splitting wedge.
Curved rectangular wedge
Patent wedge for coal, mkd. IV-99
Ancient wedge (bergeisen) found in Cwmsymlog mine
Coal splitting wedge.
Coal wedge.
circa 1750s
Coal splitting wedge.
Coal splitting wedge.
Tramway wedges
coal mining wedge
Elliott wedge
Coal wedge
circa 1740