Before I embark on having some made, does anyone have a spare Aldis OG prism lens - that's the rotatable prismatic lens ahead of the OG lens, used to zero for deflection the Aldis pattern 4 telescope? It's contained within a brass housing but just the lens will do. Can be returned after it's been copied and the optical prescription has been taken
OR: if it's available for sale, let me know.

What about this then? Anyone out there got a William Evans SMLE Overhead telescope erector cell for sale or just the rear erector lens. Otherwise it means having to have one made............

I ain't holding my breath here but it's worth asking...............
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