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Original file ‎(2,272 × 1,704 pixels, file size: 2.31 MB, MIME type: image/jpeg)

Summary

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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Description
English: Grain colour variation in quinoa (Chenopodium quinoa), INIA Genebank (Instituto de Investigaciones Agropecuarias), Juliaca, Peru.
Date
Source Own work
Author Michael Hermann
Permission
(Reusing this file)		 Please use freely but attribute the author and http://www.cropsforthefuture.org/

Licensing

I, the copyright holder of this work, hereby publish it under the following license:
w:en:Creative Commons
attribution share alike
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Wikimedia username: NusHub
author name string: Michael Hermann
URL: https://commons.wikimedia.org/wiki/user:NusHub

copyright status

copyrighted

copyright license

Creative Commons Attribution-ShareAlike 3.0 Unported

source of file

original creation by uploader

inception

14 March 2007

captured with

Canon Digital IXUS 430

MIME type

image/jpeg

checksum

7a2e39f85bea1c9a8c91b69a5eeea44a82d6a3cb

determination method: SHA-1

data size

2,421,301 byte

height

1,704 pixel

width

2,272 pixel

File history

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Date/TimeThumbnailDimensionsUserComment
current02:37, 10 May 2012Thumbnail for version as of 02:37, 10 May 20122,272 × 1,704 (2.31 MB)NusHub
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source: https://en.wikipedia.org/wiki/File:Colored_quinoa_Genebank_INIA_Juliaca.JPG

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