You can be the owner of this antique Zeiss 4-inch refractor if you have enough cash laying around. (Note: I'm not affiliated with APM Telescopes, just an admirer of some of their stock-on-hand.)
A blog about old telescopes, their makers, the discoveries made using these telescopes, and why they're important.
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1 comment:
No euros, but some dollars. Does that count?
Your blog hasn't been updated recently. What's happening?
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