Image: PD and Proximity fuze

Description: A 155mm artillery fuze, with two modes: point detonation, and proximity detonation.
Title: PD and Proximity fuze
Credit: Own work
Author: decltype
Permission: Attribution must provide the following: The Original Author's pseudonym: decltype The following URI: http://en.wikipedia.org/User:Decltype The original title of picture. The required credit may be implemented in any reasonable manner, subject to the restrictions set forth in the Creative Commons Attribution-ShareAlike 3.0 Unported License, Section 4. However, the manner of attribution preferred by the Original Author is implemented by placing the phrase: "Photo: decltype", or similar, with the word "decltype" written in a monospaced font and hyperlinked to http://en.wikipedia.org/User:Decltype, in the immediate vicinity of the image. For other versions or additional permissions, e-mail or place your inquiry here.
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC BY-SA 3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0
Attribution Required?: Yes