
Coloured sectional drawing (scale 1:2.5) of modified Schrader cycle tyre valve for tubular tyre
Coloured sectional drawing (scale 1:2.5) of modified Schrader cycle tyre valve for tubular tyre, 1937
Coloured sectional drawing (scale 1:2.5) of modified Schrader cycle tyre valve for tubular tyre, 1937