Caption: A 1673 woodcut of a 8-inch objective (i.e., primary lens), 45-meter-long aeriel telescope constructed by Johannes Hevelius (1611-1687).

Credit/Permission: Johannes Hevelius (1611-1687) in Machina coelestis, part 1, 1673 (uploaded to by User:Marshallsumter, 2011) / Public domain.
Image link: Wikipedia: File:Telescope 140 foot Johann Hevelius.jpg.
Local file: local link: telescope_hevelius.
File: Telescope file: telescope_hevelius.html.