1. Mach, Ernst.

Die Mechanik in Ihrer Entwicklung – Historisch-kritisch dargestellt. Mit einem Vorwort zum Nachdruck 1988 von Gereon Wolters.

Darmstadt, Wissenschaftliche Buchgeselschaft, 1988. 12 cm x 18 cm. XXXIV, 493 pages. Original Hardcover with dustjacket. Very good condition with only minor signs of external wear.

2. [Robinson, Sir Joseph B.] Weinthal, Leo [Editor].

Memories, Mines and Millions. Being the Life of Sir Joseph B. Robinson, Bart. Compiled and edited by Leo Weinthal.

London, Simpkin Marshall, 1929. 19 cm x 25 cm. Frontispiece, 247 pages. Five high-quality, tipped-in, vintage monochrome photographs, including frontispiece on 4 plates. Besides the vintage photographs numerous illustrations throughout. Illustrations show for example action on the Pniel Diamond Diggings in 1875, Ferreira’s Camp in Johannesburg, 1886, Pretoria in 1875 / Caricatures of Robinson in “The Moon”, “Pretoria Press” “Truth” etc. Hardcover [publisher’s original red cloth] with gilt lettering on spine and front board. Excellent condition with only minor signs of external wear. Lower corners slightly rubbed. Illegible name of preowner on titlepage. Interior is bright and clean. Pencilled underlining to page 35.

3. The Babcock & Wilcox Company Tublar Products division.

Methods of Working Seamless Tubes and Pipe of the Intermediate: B&W Croloys. Ferritic Air-Hardening Type 1/2% to 9% Chromium. Technical Bulletin 9C.

Pennsylvania, The Babcock & Wilcox Company, 1954. 13.5 cm x 20.5 cm. 46 pages with several figures, tables and black and white photographs. Original softcover with embossed lettering. White plastic comb-binding. Very good condition with only minor signs of external wear. Minor rubbed on covers. [Technical Bulletins]

4. Watters, Mick.

Mechanical and Quartz Watch Repair.

Wiltshire, Crowood Press Ltd., 2010. 19.5 cm x 25 cm. 160 pages. Several black and white drawings, illustrations and photographs throughout. Original Hardcover with illustrated dustjacket. Fine / As New.