PSM V07 D190 Scale showing exclamation marksSimilarSeal gem - Public domain museum image. A close up of a piece of food on a rulerA close up of a person holding a piece of food. Peanut hand vision, backgrounds textures.Roman Sard ring stone - Public domain museum object photoBead, Egypt, Middle Kingdom, 2040 – 1640 BCThrough the Haze - NASA Titan imagesA close up of a plant with a lot of white stuff on it. Ripe fruit fire weed flower.MoreRelatedPSM V41 D096 Schist exhibiting dendritesPSM V06 D148 Tracings and notations of the walking pacePSM V01 D223 Flint hatchetsPSM V13 D090 The pictet apparatusPSM V01 D277 Madrepore - A black and white drawing of a treePSM V44 D061 Telautograph receiverMorePSM V07 D190 Scale showing exclamation marksfile_downloadDownloadcrop_originalOrder Printrate_reviewdescriptionSummaryPodura scale showing exclamaation markslabel_outlineTagspoduraepopular science monthly illustrations volume 7egg shapedscience historypopular sciencedate_rangeDate1875createSourceWikimedia CommonslinkLinkhttp://commons.wikimedia.org/copyrightCopyright infopublic domain