The caption above the logo reads "From Sweet Trees (?) and Pastures"
while the one below reads "5,000 Feet Above the Sea". (Galt, California, where it was made, is only about 50 feet above sea level. Truth-in-advertising wasn't a thing back then.) Just above the Sego sign can be seen another sign advertising "Bath" and something else.
A glimpse into an earlier era in San Francisco is available at least until construction on a new building begins, when it wil be covered over and forgotten.