Acquired my first bannerstone ever from a bottle collector who dug it out of a creekside bank near Finger Lakes Region, NY. The photo of the hole's slightly tapered interior was taken with a phone camera held up to the eyepiece of a microscope at 10x. Redneck Photomicroscopy! The interior walls look pitted to me. The exterior of the slate is so smooth, so worn, it is a pleasure to hold.
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Small Shield Bannerstone, Banded Slate
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Surface - so you mean a closer close-up of outside rim of hole? More close-up than I have uploaded? If so, can do. But let me ask by way of discussion: what better evidence of age/authenticity can there be than the *interior* walls of the hole at 10x? Have I stumbled onto a new technique here? A 10x photo of hole interior? Can't say I have seen one before. So if the hole was drilled by a modern drill bit, we would see a series of closely spaced, spiral striations. Correct? And what is visible here is a largely smooth wall with pitting. And how do you get pitting inside a smooth, slate tube? Only by a few thousand years of being buried in the ground. That's my guess, my take. What ya think? If someone would send me a modern drilled piece of slate, I'll photograph its interior at 10x and we can have a look-see.
Cayuga County, NY Finger Lakes Region
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