1700 block San Pablo Avenue
This is the building that Piedmont Piano is in, but at the other end. Presumably the Gray Bros. were the overall contractor. “A.S.P.” stands for Artificial Stone Paving, a common name for concrete formulations in the late 1800s. The Schillinger Patent was the impetus for a major court case in 1894, Schillinger v. United States.
As of 1897 the Gray Brothers operated two San Francisco traprock quarries, at 26th Street and Douglass and at Green and Sansome.
450 24th Street
Battered but handsome. I’m a sucker for the small caps in the word “and.” Hope I find more from this maker. See my profile here.
26th Street at Telegraph Avenue
I assume this is L. B. Duffin, whose other marks show no city.
372 24th Street
425 25th Street
This must be Fred H. Austin, whose elaborate escutcheons date from 1912-1920. Those marks show the address 2328 14th Avenue. I am guessing that this mark is slightly older, from 1910 or 1911.
3400 block of Ettie Street
This happens to be the location of John F. Tulloch contractors. I will assume that this is the Tulloch of Kelly and Tulloch.
967 42nd Street
I hope I find better examples of this one. There are some marks out there, I wonder if they’re even in the Roman alphabet.
