Philadelphia: Published by Heller & Brightly, 1878. First edition. 8vo, original printed orange wrappers, [1-2], -16, [1-2], 2-8, , -10, 13, [14-16] pages, plus 6 inserted leaves and one inserted folding map. Wrappers a little soiled and worn, just splitting a trifle along the spine; a very good copy. Item #18307
Illustrated technical trade catalog for this Philadelphia manufacturer of surveying equipment and transit telescopes, of eccentric pagination but complete. Includes a fold-out map of the magnetic variation of the United States, as well as “Centennial Engineering Facts.” OCLC notes four locations for this catalog.