Single sheet entitled "STAMPS" discussing the advantage of printed gummed "stamps" over the idea of pre-printed envelopes and shows printed examples of four such "stamps" by James Chalmers (see Penny Postage Centenary page 79 and illustration on page 8 of Stanley Gibbons Volume One G.B. Specialised catalogue), printed in black on thin wove paper (120x215 mm.); fine. Photo