Lot 141

Sir Barnes Wallis 'Dam Busters' Collection auction held on Wednesday 25th of March 2026

ALLEN, Edgar C. Machinery's Screw Thread Book. London: Machinery Publishing Co, Ltd 1940, 8vo, 147pp. Orange card cover with black lettered spine. Fading to spine, some minor rubbing to corners and edges of spine. Pastedown and endpaper with stuck labels "MR. WALLIS' PRIVATE COPY". Initialled to front cover B.N.W.