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File:USB portable mouse.jpg

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Original file (2,349 × 1,674 pixels, file size: 275 KB, MIME type: image/jpeg)

Summary

Description USB portable mouse with 50p for size comparison
Date 24 September 2006 (original upload date)
Source Transferred from en.wikipedia to Commons.
Author Robertvan1 at English Wikipedia
This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: cropped to remove majority of the copyrighted coin. Modifications made by JD554.

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, Robertvan1 at English Wikipedia. This applies worldwide.
In some countries this may not be legally possible; if so:
Robertvan1 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.
  • 2006-09-24 16:00 Robertvan1 3248×1676×8 (153426 bytes) {{pd-self}} USB portable mouse with 50p for size comparison

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inception

24 September 2006

File history

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Date/TimeThumbnailDimensionsUserComment
current11:44, 6 August 2009Thumbnail for version as of 11:44, 6 August 20092,349 × 1,674 (275 KB)JD554{{RetouchedPicture|cropped to remove majority of the copyrighted coin|editor=JD554}}
17:14, 21 March 2007Thumbnail for version as of 17:14, 21 March 20073,248 × 1,676 (150 KB)Liftarn{{Information |Description=USB portable mouse with 50p for size comparison |Source=Originally from [http://en.wikipedia.org en.wikipedia]; description page is/was [http://en.wikipedia.org/w/index.php?title=Image%3AUSB_portable_mouse.jpg here]. |Date=2006-

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