Large wooden wedge for manoeuvring stone blocks
Coal splitting wedge.
Patent wedge for coal, mkd. IV-22 D.S.&.A.
Miner's wedge 2lb.
Slider wedge
Miner's iron wedge
Mason's wedge (iron)
1874
Curved rectangular wedge
Coal wedge.
circa 1750s
Coal splitting wedge.
Coal splitting wedge.
Patent wedge for coal, mkd. IV-99
Ancient wedge (bergeisen) found in Cwmsymlog mine
Coal splitting wedge.
Coal splitting wedge.
Tramway wedges
Coal wedge
circa 1740