Plastic vault cap, with instructions, supplied by the Mothers' Clinic, Preston, 1951 Plastic vault cap 1951
Five red rubber vault caps, designed by Marie Stopes, with instructions, by BCM/Racial, London, post 1945 Five red rubber vault caps designed by Marie Stopes
Rubber vault cap, by Lambert, English, 1920-1960 Rubber vault cap, by Lambert, English, 1920-1960 1930-1960