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4 results for: achromatic lens

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Giuseppe Piazzi's refracting telescope with achromatic lens built by Jesse Ramsden
ARP23A16_236

Giuseppe Piazzi's refracting telescope with achrom...

Frontispiece of Giuseppe Piazzi's catalogue of star positions
ARP23A16_237

Frontispiece of Giuseppe Piazzi's catalogue of sta...

Peter Dollond
ARP09A00_106

Peter Dollond

John Dollond
ARP07108_0460000950

John Dollond