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Updated: May 16, 2025
"I can't make out what you want with this great instrument," I said. "A common pocket lens would do all that you require. Besides, a six-inch objective will not magnify more than two or three diameters." "Two, with the draw-tube closed," replied Thorndyke, "and the low-power eye-piece brings it up to four. Polton made them both for me for examining cheques, bank-notes and other large objects.
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