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File:Protoshield2.jpg

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Protoshield2.jpg ‎(600 × 450 pixels, file size: 164 KB, MIME type: image/jpeg)

Summary

Description
English: Vancircuit (talk) 15:24, 28 March 2009 (UTC)
Date 28 March 2009 (original upload date)
Source Transferred from en.wikipedia to Commons by Abisys.
Author Yngvarr at English Wikipedia

Licensing

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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Public domain This work has been released into the public domain by its author, Yngvarr at English Wikipedia. This applies worldwide.
In some countries this may not be legally possible; if so:
Yngvarr grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Original upload log

The original description page was here. All following user names refer to en.wikipedia.
  • 2009-03-28 15:23 Vancircuit 600×450× (167805 bytes) slightly larger version- I am the copyright holder and release the image as public domain. ~~~~
  • 2009-03-20 20:11 Yngvarr 544×429× (146835 bytes) {{Information |Description = Arduino Shield |Source = http://www.arduino.cc/playground/Tutorials/Protoshield |Date = |Author = |Permission = |other_versions = }}

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inception

28 March 2009

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Date/TimeThumbnailDimensionsUserComment
current23:40, 8 July 2009Thumbnail for version as of 23:40, 8 July 2009600 × 450 (164 KB)Abisys{{Information |Description={{en|Vancircuit (talk) 15:24, 28 March 2009 (UTC)}} |Source=Transferred from [http://en.wikipedia.org en.wikipedia]; transfer was stated to be made by User:Abisys. |Date={
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