About: http://webisa.webdatacommons.org/211594945

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The recessed portion of one or both ofthe punches frequently has some type of marking such as a letters, numbers, logos or other indicia thereon which information is transferred onto each tablet.
http://www.w3.org/ns/prov#wasQuotedFrom	patentgenius.com