Black & Co. a 19th Century Glasgow Whistle Maker History & Whistles. A. Strauss

Black & Co. ( David Black ) 81 North Frederick St. Glasgow –  1885 (or 1883) to 1898 ,  Zin & Tin workers Packing-Case Makers  were pioneers of Snail type whistle making and may well have been the first to use the title ‘ Thunderer ‘ for a whistle.
Little was known about the company’s  History, a new whistle; the first one stamped with maker’s name which proved to be a Key Whistle, triggered me to more research and findings .
Previously many whistles as these, none stamped whistles attributed to Black showed, All 5 piece London type snail ( Escargot ) whistles.
Here is the new one, fully stamped found.

A railway guard whistle stamped D. Black Maker Glasgow, And  C & OR for Callander & Oban Railway  (a small railway Co. ) on one side,  other side shows # 3

History
Black & Co., Ltd.
Address : 81 North Frederick St. Glasgow
 1886 Glasgow post office directory.
 Mrs. Black was manager of the Black & Co. Making cases,  By 1886 they were Continue reading Black & Co. a 19th Century Glasgow Whistle Maker History & Whistles. A. Strauss