They could definitely be bone, im only guessing and just knowing its not plastic. They are extremely thin. Half as thin as any other razor scales i have for sure. I cant quite get a great picture of the width but this will have to do:
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I think i will drill them out, fill in that weird saw mark near the pivot and the chip at the wedge... sand lightly and wax. blade will get polished up and honed . I'll try and do that this week and post up some pics.