1638 11th Avenue
This is a partial mark, confirmed by another example. This apparently dates from the 1800s.
1638 11th Avenue
This is a partial mark, confirmed by another example. This apparently dates from the 1800s.

1000 Bayview Avenue
This is exactly like the “C. Fischer” mark I found on MacArthur not far from here. My guess is that Mr. Fischer found it expedient to hide his German name; also he seemed to have trouble with the second “C.”

1826 Bridge Avenue
M. A. Lopes was not the only cement guy in San Leandro named Lopes; Frank Lopes was also there. But this one looks older.

Madison Street at 15th Street
This mark is clearly the Wolfe of Douglas & Wolfe, but I can’t tell if it precedes or succeeds the Douglas & Wolfe team, which extends from 1926 to 1940 in my records. My guess is that Wolfe came first.

1433 27th Avenue
The mysterious B. Pina appears to have scratched a date in the center field of this example, which is the second I’ve found.

1453 Fruitvale Avenue
This is the kind of mark that has a date in the center, so I’ll be looking for one.