Dring & Fage's "Improved Sikes's Hydrometer", Freeman & Roe, Plumber and Engineer, attractive pictorial advertisements printed in black inside letter sheets A10 and A19, used, also Tweeddale Patent Drain Tiles, printed in blue inside letter sheet (stereo missing), used, all with red Maltese Cross cancellations; some defects but an attractive group. S.G. Spec. MA92a, 100, 144