I talked to Dave Parker of Satin Snow and he said that all his gg's come blank. I have two sheets on order and he said he would include a grid template of some sorts, that is super helpful, but how does one mark a grid on a blank ground glass? I just talked to Dick Phillips and he was saying that he uses a marking device that has a very soft brass tip to grid his gg's. Thanks in advance. This question has just been bothering for sometime.
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