Image: Crayford 2
Size of this preview: 460 × 600 pixels. Other resolutions: 184 × 240 pixels | 958 × 1,249 pixels.
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Description: Crayford focuser drawings by John Wall.
Title: Crayford 2
Credit: Own work / At my request was donated by Mr John Wall (wallporritt(at)madasafish.com) to Wikipedia.
Author: Tamasflex / John Wall
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC BY-SA 3.0
License Link: https://creativecommons.org/licenses/by-sa/3.0
Attribution Required?: Yes
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