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Amgueddfa Cymru – Museum Wales
Blood pressure gauge fitted inside a long, rectangular wooden box with two hinged fittings on the top. Click lock mechanism on the side with a turn knob to open and a metal handle so the box can be lifted and carried. Lid springs open and on the underside is the pressure gauge with a black metal air canister and green ribber tube attached. Dark brown/grey cotton arm band attached to green pipe which is wound inside the band, to be tightly wrapped around the arm.
