cover 24, AF, RK-RL pair, 25, DK, OB, OD, 26, IB, ME, 27, OC, SA, 28, FJ, 29, BG, each used on separate entire (one with most attractive printed pictorial "Blaydon Cinder Ovens" advertisement inside), virtually all four-margined and several enormous at places with portions of adjoining stamps, all Scottish usages with black Maltese Cross cancellations (mostly very neat) including Greenock and a most unusual Glasgow type in water-ink; a mostly fine and extremely attractive group