T Sheppard and J F Musham.  Originally from SNC of 1920-23. Reprinted by Spink & Son Ltd, London, 1975.  HB, x + 224 pages, illustrated throughout, mostly with good b&w photos and line drawings. Publisher's errata sheet tipped in at the rear (as sold). 155 x 240mm.  This is the classic work on scales and coin-weights. Essential reading.
D/J faded and sunned, frayed at edges, Internally very good and clean.