Image: Relay contacts
Size of this preview: 450 × 600 pixels. Other resolutions: 180 × 240 pixels | 768 × 1,024 pixels.
Original image (768 × 1,024 pixels, file size: 111 KB, MIME type: image/jpeg)
Description: Contact points of an antique telegraph repeater relay.
Title: Relay contacts
Credit: Own work
Author: User:JA.Davidson
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
Image usage
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