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Brass tamping rod (‘stampar’), for tamping gunpowder (‘powdwr du’) in blast holes. Consists of a cylindrical piece of brass, originally a solid brass rod, which has been turned between centres. A groove is formed in one end (approx.77mm in length), to accommodate the fuse while tamping. This tamping rod belonged to Trevor Williams who worked at Maenofferen Quarry, Blaenau Ffestiniog, between circa 1935 – 1960.

Stampar efydd a ddefnyddiwyd i ‘stampio’ powdwr du i fewn yn y twll cyn ei danio. Darn o efydd silindrog wedi ei durnio, gyda rhych yn un pen ar gyfer derbyn y ffiws wrth stampio. Perchennog y stampar yma oedd Trevor Williams a weithiodd yn Chwarel Maenofferen, Blaenau Ffestiniog, rhwng 1935 - 1960.