Quote:
Originally Posted by BCA
The envelopes in my boards all contain standard-looking brass thumb tacks. It think these envelopes were added in the 1950's and 60's when these boards were still in use. When released as surplus in the 1980's there was a mixture of tan and olive green cases. Usually the rulers and metal parts had been mixed-up and had a wide range of dates.
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Not seen them on any for sale here in the UK.
I have a plotting board and tripod still - all the bits except the envelope.
I do have some of the thumb-tacks with the folding loops to lift them off the board more easily.