4427 Moraga Avenue
1945 – Ed Doty
18 March 20091944 – Chas. Somers & Sons
17 March 2009
4462 Pleasant Valley Court South
1941 – F. E. Flaherty
16 March 2009
5273 Shafter Avenue
1939 – C Troja-Sisto
15 March 2009
4453 Pleasant Valley Court North
This is the earliest Troja-Sisto mark I’ve found, and definitely the cleanest.
1938 – J. A. Milner
14 March 2009
4459 Moraga Avenue
I uploaded this shot before I saw that I already have a Milner mark from 1938—in fact, only four days older than this. Oh well.
1938 – Albany Concrete Co.
13 March 2009
4382 Piedmont
This mark was a puzzle for a long time, but I photographed it anyway and now I’ve confirmed it as an Albany Concrete Co. mark.
1937 – Bowen & Stone
12 March 2009
4190 Shafter Avenue
Bowen & Stone may include J. Bowen. I’ve only seen 1935 and 1936 marks for J. Bowen. And Stone may be the Stone in Stone & Ferri.
