Back in the late 1960s I worked for MOD in Woolwich Arsenal testing
papers and boards. We quite often had "glazed board" which was used
for cartridge cases in for testing.
After all tests were completed and satisfactory any excess was disposed
of - I could have brought home loads of pricking card but I didn't make
or know anything about BL then.
Brenda
On 19 Sep 2006, at 08:37, Jean Nathan wrote:
The pricking card looks a special type. Yes, it's treated with
something and the holes don't stretch out of shape as easily as
ordinary card, so it helps to keep the pins firmly in place. Was it
made particulary for lacemaking? No. Some (including the teacher) said
they understood it's primary use was as an electrical insulation, but
others (including me) think it's used in the making of shotgun
cartridges.
Brenda
http://paternoster.orpheusweb.co.uk/
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