AMERICAN WATCHMAKING-ATechnicalHistoryOfTheAmericanWatchIndustry 1850-1930-NAWCC

Description

The National Association of Watch and Clock Collectors (NAWCC)
publishes frequent bulletins
with technical articles about (surprise) watches and clocks, "Marts" with advertising and the very occasional "Supplement."
This is one such supplement: AMERICAN WATCHMAKING-A Technical History Of The American Watch Industry 1850-1930 by Michael C Harrold.
Technically, this is
NAWCC BULLETIN SUPPLEMENT 14, SPRING 1984 (although it's copyright date is 1981).
It is softcover, 8.5 by 11 inches, 144 pages, with detailed B&W photos, and a long fold-out table illustrating the time-phasing and relationships between different watch brands(last photo shows it in part).
Cover has no wear but several bumps on the front cover at top left.  Contents are bright, original and unaged. Spine is tight, secure and as new. It would be a fine addition to your library.
Please note that I ship only to the lower 48 states and DC, using USPS Media Mail.