Artifact Details Title TEC promotional materials Catalog Number 102687445 Type Document Description Includes documents: Model 520 programmable communications processor Series 500 data screen terminal systems Series 400 data screen terminals Date 1973 ca. Publisher Transitron Electronic Corporation Category Promotional Material Collection Title Buckholtz, Desaussure and Michael collection Credit Gift of Thomas J. Buckholtz and Helen T. Buckholtz Lot Number X2592.2004