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).
In case this is not legally possible: William Grimes 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.
2007-01-19 19:18 William Grimes 899×611×8 (446470 bytes) U.K. Prototype model of an 00 scale (1:76.2) British Railway Class 25 shown with 5 pence for size, Photo by William J. Grimes.
Captions
Add a one-line explanation of what this file represents
Items portrayed in this file
depicts
OO scale
copyright status
copyrighted, dedicated to the public domain by copyright holder
copyright license
released into the public domain by the copyright holder
File history
Click on a date/time to view the file as it appeared at that time.
{{BotMoveToCommons|en.wikipedia}} {{Information |Description={{en|U.K. Prototype model of an OO scale (1:76.2) en:British Railwaysen:Class 25 shown with 5 en:pence for size, Photo by William J. Grimes.}} |Source=Transfered from [http://en
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):