Here are a couple pictures of the Pentel 271D. It is 0.7mm and has a hexagonal cross section. Its length is about 137.6mm.
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Wooow
I’ve never seen this guy before
Question: did the buttons always sit above the rear flange? Or did some shrinkage happen to the body over the decades? I have a really old Tombow H-100K where the body is bent due to warpage…
I have wondered the same thing. If it is shrinkage of the body or an expansion of the inner reservoir.
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