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