2 entries match your criteria. Related Historical MarkersThe list includes other historical markers about Philo T. Farnsworth in California and Indiana. March 9, 2013 Farnsworth's Green Street Lab and Marker SHOWN IN SOURCE-SPECIFIED ORDER 1 ► California, San Francisco City and County, San Francisco, Telegraph Hill — 941 — Farnsworth's Green Street Lab — 2 ► Indiana, Allen County, Fort Wayne, Northside — 02.1992.1 — Home of Philo T. Farnsworth — ︽