Kickstarter backers only! Get one of the first 10 pens with a MACHINED SPRING and a machined case that will both have an engraved serial number on each part of the pen and on the lid of the case. The pen and case will be anodized in your choice of color: clear, black, blue, red, green, or violet. Choice of Ink color;black, blue, red, green, or violet. For blue and black ink you have a choice of .25, .3, .4, .5 mm tip sizes. The other colors only .3 or .4 mm. First backer gets number S/N 1, 2nd backer gets number 2 and so on. International backers please add $12

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