No higher resolution available. Barbed_alarm_clock.png (download) (122 × 148 pixels, file size: 34 KB, MIME type: image/png) About File History Metadata There is no description yet. Add a description. Appears on these pages of Barbed alarm clock The barbed alarm clock was an invention by Doc Brown. Marty McFly surmised that it has spikes on... File history Click on a date/time to view the file as it appeared at that time. Date/TimeThumbnailDimensionsUserComment current18:48, February 22, 2016122 × 148 (34 KB)JenniBee (Talk | contribs) 18:33, February 22, 2016213 × 197 (73 KB)JenniBee (Talk | contribs) Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file. Horizontal resolution 37.79 dpc Vertical resolution 37.79 dpc Software used paint.net 4.0.6 Read more Eye drop glasses Umbrella necktie Electromagnet Retrieved from "http://backtothefuture.wikia.com/wiki/File:Barbed_alarm_clock.png?oldid=42064" Ad blocker interference detected! Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.