Alfred J. Amsler — Original Amsler-Planimeter (German Manual)

Schaffhausen, Switzerland, Alfred J. Amsler & Co. 1947. 1st. Paperback. First printing, text is in German. 28 pp. 18 illustrations (mostly photos), table, octavo format in original orange softcovers. Laid in: two contemporary items. One is a simple blueprint of a planimter labelled "No. 600 Heim Birka 7-12-46". The second is another diagram with inscription in German, not of a planimeter. Book is complete with full cover, staples holding well, no owner's name. Expected wear, soiling and one short edge-tear to covers. Internally Very Good. A very rare manual. Only one found world-wide in a German library. Priced conservatively. Good.