12019-05-08T15:53:26-07:00Emilia Porubcin63ec028064958b3240cc8e4e010f355faa0c8e12332303Microblades could be mounted with resin and string to wood and were used as arrowheads, spear points, or an array of other cutting tools. These blades were carved from large pieces of chert waste, and are frequently found in groups.plain2019-05-14T22:38:20-07:00Excavated by Heyward Walter Seton-Karr and donated to Stanford ca. 1908Emilia Porubcin63ec028064958b3240cc8e4e010f355faa0c8e12