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Any idea how old that is?
A small stack of them was in a box of PS315 pencils. Each of the pencils has a 1978 date code.
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It is marked “No. EX-EGF78”, which is 1978.
I have an older version of this in the Catalog directory in the “Ads, Instructions and Pamphlets” subdirectory. It is “No. EX-EGF77”.
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