Item #514482 On a Method for Deducing Approximately the Focal Lengths and Magnifying Powers of Early Telescopes. An offprint from the Monthly Notices of the Royal Astronomical Society. Volume 85, No. 7. S B. Gaythorpe.

On a Method for Deducing Approximately the Focal Lengths and Magnifying Powers of Early Telescopes. An offprint from the Monthly Notices of the Royal Astronomical Society. Volume 85, No. 7.

Royal Astronomical Society, 1925. Card Covers. Very Good Condition. Item #514482

4 pages. Original card covers, stapled as issued. Clean throughout. Size: 15 x 23 cms. Category: Varied Booklets;.

Keywords: BZDB395 Varied Booklets; S.B. Gaythorpe On a Method for Deducing Approximately the Focal Lengths and Magnifying Powers of Early Telescopes. An offprint from the Monthly Notices of the Royal Astronomical Society. Volume 85, No. 7.

Price: £14.95

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