PPRuNe Forums - View Single Post - RAF / RN Chinagraph Pencils (Cold War era) for Kneeboards
Old 23rd Sep 2018, 09:26
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NutLoose
 
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And of course post-chinagraph came the Stradeler(sic?) felt tips to which BE able referred. Two flavours, water soluble, easy to wipe off with spit and glove and a hazard in rain, and the permanent which one could, with care Sniff ☺ and could be cleaned off using the highly volatile solvent in a red SO tin until the HSE police banned it.
Cheap aftershave removes it.
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