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Amgueddfa Cymru – Museum Wales
Poster printed in black ink on white paper. Full title: "SAFETY FIRST / When knocking sprags out, see you have a clear retreat. - Avoid this! / A prop that was set for safety is a trap through neglecting SAFETY FIRST." Includes two black and white drawings showing a miner knocking sprags out. This poster is from within the album in accession number 86.82I/1 (1). The page it was stuck onto is still attatched to the back of the poster.
