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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, 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.