AbaloneOutside

Description:

: : 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: 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: 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: 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: 22.5 mm , 0.89 in £2: 28.4 mm , 1.12 in : Euro: 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. Deutsch | English | Español | Suomi | Français | Gaeilge | עברית | Italiano | 日本語 | Македонски | മലയാളം | Plattdüütsch | Português | Русский | 中文 | 中文（简体）‎ | +/−. Description: English: The outside of a Californian red abalone, Haliotis rufescens. This red abalone was harvested on North California coast in May, 2005. An American quarter dollar coin is included in the picture to provide scale. The picture shows some sea plants growing on top of the shell. Note the 4 holes on the right hand side. Date: May 2005. Source: Own work. Author: Kowloonese. : Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue. : This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.:.. This licensing tag was added to this file as part of the GFDL licensing update.http://creativecommons.org/licenses/by-sa/3.0/CC-BY-SA-3.0Creative Commons Attribution-Share Alike 3.0truetrue.