Proof BILL OF EXCHANGE: 1869 1d., 6d., 1/3d. and 1/8d., and 1880 1r.65c. (2), 2r.50c. (2) and 3r.35c. (2), each an imperforate plate proof strip of three in issued colours on gummed watermarked paper; a few with hinge remainders and/or minor creases, otherwise fine