
820 58th Street
This is the third 1906 Peterson & Adler mark I’ve found, and it’s by far the best preserved one by this maker, although the light doesn’t flatter it.

820 58th Street
This is the third 1906 Peterson & Adler mark I’ve found, and it’s by far the best preserved one by this maker, although the light doesn’t flatter it.

5920 Genoa Street
This is as pristine a mark as you will find from 1906.

1053 Alcatraz Avenue
I just can’t make this out, but a directory search found Robert H. Hahn, cement worker.

673 Poirier Street
I’ve found three 1901s and four 1907s by this maker; finally here’s a 1906.

1016 44th Street
There are two marks here, and the date is very faint but firm for both. This is right on the Emeryville line.