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Ophthalmic lenses and accessories; lenses, frames, magnifiers and readers .. (1916)

Bausch & Lomb Optical Company · Rochester, N.Y. : Bausch & Lomb Optical Co. · leaf 141

An illustration from Ophthalmic lenses and accessories; lenses, frames, magnifiers and readers .., 1916, leaf 141 — ks are regularly made in the following sizes: B 47 mm round, with reading portion 19 mm round. E 49 X 38 mm, with reading portion 30 x about 15 mm. E Large 55 x 47 mm, with reading portion 30 x about 33 mm.They are made in the deep curvcfl form only and finished on the concaveside. Cylinders must… … 128 B A U S C H & L O M H /C$i!S^ <^ V T I C A h C O M I A X Y

Lenses · Eyeglasses

Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.

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