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Unread 02-20-2019, 07:05 PM   #8
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B. Dudley
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In graded Parkers there is easily a 4 lpi swing, even within grades. It depends on gun to gun and also era the gun was made. I have seen original DH grade guns with checkering as course as 18 lpi and I have see GH guns as fine as 22 or even 24 lpi. And I have seen Bs that are courser than some Gs.

Of course when I talk about like spacing, I speak in modern day tool terms since many original guns made 100 years ago with handmade tools are not exactly a given spacing. All the time I am gauging various guns and finding that more often than not, the original spacing is somewhere in-between the common 2 line intervals seen today.
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