File:Sphaerodactylus parthenopion 004.jpg

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Original file ‎(3,657 × 2,255 pixels, file size: 1.27 MB, MIME type: image/jpeg)

Summary

Description
English: Adult male Sphaerodactylus parthenopion resting on a U.S. dime.
Date
Source email
Author Alejandro Sánchez
Permission
(Reusing this file)
VRT Wikimedia

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This image has currency in it to indicate scale.

Using coins for scale is discouraged as it will require people unfamiliar with them to look up the dimensions or guess, both of which defeat the purpose of the object in the first place. Coins can also reinforce a geographical bias, and some coins' designs are copyrighted.

Ideally, a photograph should include a ruler with the subject (example) or an added scale marking. SI ("metric") units are the most commonly used worldwide (see meter and centimeter).

Images with coins to indicate scale

Common coin diameters for reference:

  • U.S. dollar (as of?):
    • 1¢: 19.05 mm, 0.75 in
    • 5¢: 21.21 mm, 0.84 in
    • 10¢: 17.91 mm, 0.71 in
    • 25¢: 24.26 mm, 0.94 in
    • 50¢: 30.61 mm, 1.22 in
    • $1: 26.5 mm, 1.02 in
  • Canadian dollar (as of?):
    • 1¢: 19.05 mm, 0.75 in
    • 5¢: 21.2 mm, 0.83 in
    • 10¢: 18.03 mm, 0.71 in
    • 25¢: 23.88 mm, 0.94 in
    • 50¢: 27.13 mm, 1.07 in
    • $1: 26.5 mm, 1.02 in
    • $2: 28 mm, 1.1 in
  • Pound sterling as of 2021:
    • 1p: 20.32 mm, 0.8 in
    • 2p: 25.91 mm, 1.02 in
    • 5p: 18 mm, 0.71 in
    • 10p: 24.5 mm, 0.96 in
    • 20p: 21.4 mm, 0.84 in
    • 50p: 27.3 mm, 1.07 in
    • £1: 23.03–23.43 mm, 0.91–0.92 in
    • £2: 28.4 mm, 1.12 in
  • Euro as of 2002:
    • 1c: 16.25 mm, 0.64 in
    • 2c: 18.75 mm, 0.74 in
    • 5c: 21.25 mm, 0.84 in
    • 10c: 19.75 mm, 0.78 in
    • 20c: 22.25 mm, 0.88 in
    • 50c: 24.25 mm, 0.95 in
    • €1: 23.25 mm, 0.92 in
    • €2: 25.75 mm, 1.01 in

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Licensing

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Captions

Adult male Sphaerodactylus parthenopion resting on a U.S. dime

Items portrayed in this file

depicts

File history

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Date/TimeThumbnailDimensionsUserComment
current00:22, 30 June 2011Thumbnail for version as of 00:22, 30 June 20113,657 × 2,255 (1.27 MB)Materialscientista bit brighter
00:16, 30 June 2011Thumbnail for version as of 00:16, 30 June 20113,657 × 2,255 (1.27 MB)Materialscientistcentering crop, brightness
13:25, 28 June 2011Thumbnail for version as of 13:25, 28 June 20113,911 × 2,604 (2.22 MB)Maky
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