SF Muni has officially cemented 110 years of history making it the oldest publicly-owned and operated transit agency in any major American city. Photo is from 1983 featuring a then 3 year old Metro line on Market Street painted in the iconic shades of orange #ThrowbackThursday #tbt 📸: @opensfhistory 📲 Tag us @sanfranciscovibe, #sanfranciscovibe, or #sfvibe for a chance to be featured