Contra Costa Construction Co.

2483 8th street, berkeley

Affectionately referred to as CoCo CoCo...

Blake & Bilger Company

1647 9th street, berkeley


NE corner of hearst (formerly bristol) and 9th street, berkeley


2417 8th street, berkeley

Blake & Bilger

901 bancroft, berkeley
Here's another that I would never have been able to identify without Lincoln Cushing's help! Andrew at Oakland Sidewalks also confirms that these stamps are generally very hard to read. At least the date is relatively legible! If that says "1906," as I think it does, this is my oldest stamp to date.