Here's a bagpipe you don't see everyday.  Douglas and Son Ltd. Glasgow, Scotland. According to Jeannie Campbell, Hugh Douglas was a maker of bugles and military instruments.  They appeared in the Glasgow trade directories from 1914 to 1925 as bagpipe makers and musicial instrument makers. 

There are those who believe that both Henderson and Lawrie were the actual makers of Douglas bagpipes. The Douglas bagpipe below is made of Brazilian Kingwood. These images clearly show a scalloped projecting mount, which you're only likely to find on Lawrie bagpipes.
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The silver and ivory set (below) is especially important as the complete history was documented from day 1 and maintained with the bagpipe (in the case). They were purchased new in New Zealand in 1922 by John Millar. He pawned them to a music store in 1930 when John Wilson's father brought them. (John wilson being 9 yrs old at this stage). John then played the pipes until 1994 when he gave up and sold them to Neil McMillan.  Neil played these pipes until he passed away in 2010.  Neils son, "Neil Jr" inherrited the pipes, but he never played them as he already owned a set of silver and ivory MacDougalls!. A family decision was made to sell the pipes. The current owner strongly believes that they were made by Lawrie. The profiles support this.
Douglas and Son Ltd.