| Unidentified photographer/creator Revolving Scope 1873 Book illustration Google Books LL/34537 In "The Silver Sunbeam (Eighth edition)" by J. Towler (New York: E.& H.T. Anthony & Co., 1873), p.565, Fig.57
Figure 57 is the ordinary Revolving Scope. It is made in imitation rosewood and black walnut, and holds from thirtysix to one hundred paper views.
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