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).
Dette verket har blitt frigitt til allmennheten av opphavspersonen Tjwood. Dette gjelder på verdensbasis.
I enkelte land kan dette være juridisk umulig. I så fall: Tjwood gir hvem som helst retten til å bruke dette verket for ethvert formål, uten noen vilkår, med mindre slike vilkår kreves ved lov.
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Legg til en kort forklaring på hva filen representerer
Copied from en.wikipedia.org: Disposable foam earplugs, both out of the ear (with coins for scale) and inserted into the ear. Taken by me. Tjwood 15:22, 8 Dec 2004 (UTC) {{PD-user|Tjwood}} (del) (cur) 15:15, 8 December 2004 . . Tjwoo