Issue link: http://read.uberflip.com/i/569003
74 Revolution, c.1931 Printed from 3 blocks in transparent golden ochre, spectrum red & blue Signed & inscribed `EP' (Experimental proof') aside from the edition of 50 22.8 x 30.6 cm (9 x 12 in) Ref: Coppel CEP24 / Vann 24