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 == Scanning tips? == 

 Hey, I'm no master scanner, but I'd like to upload some stuff to Commons (and hopefully do it right).  Can you give me any tips for this scan?  It had a pale yellow background (not part of the original image) that I got rid of by setting the contrast at 96 on GIMP.  My scanner does 4800dpi, but even at 1200 my little laptop was starting to heave and sweat, and it took a while to open in GIMP—though with all the fine hatching I'd sure like to scan it higher-res.  ⚞⚟ "