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Antique T. Cooke and Sons 4″/F18 triplet Apo. Circa 1890 For Sale

Price - $21,000.00

Ad Number: 141247

Posted: 29 Jun 2018

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Historically important, 1890’s T. Cooke and Sons 4″/F18 PhotoVisual triplet for sale.

This museum piece is a rare example of this triplet lens; considered by most to be the first true apochromat refractor. A solid brass tube on a Cooke EQ mount complete with H. Taylor weight driven clock drive, original connecting rod/Hooke’s joint & original iron pillar. All original weights are included and all drive and slow motion components elements on the EQ mount are working smoothly as they should. The objective lens is clean and clear and is mounted via a Cooke bayonet mounting ring. The equatorial mount features original brass & silver setting circles with fixed magnifying lenses on both axes.

Asking price for this one-of-a-kind instrument is £16,000 GBP (around $21,000 USD by todays rate.) I might consider a small Questar as a partial trade. Lowball offers will be ignored, sorry.
This is a significant opportunity to obtain a historically important instrument. More pictures available for serious inquiries only please. The instrument is located in London, UK. Shipping is possible, costs to North America will be in the region of £1,500 GBP.


  • Condition Used
  • Location London, UK

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