Box containing 1x10cc ampoule of "Hypoloid" Avenyl ( Myristoxy-mercuri-m-hydroxybenzaldehyde), with information leaflet, by Burroughs Wellcome and Co., 1927 Box containing 1x10cc ampoule of "Hypoloid" Avenyl ( Myristoxy-mercuri-m-hydroxybenzaldehyde) 1927