1931 – J. E. McCaffrey

2 August 2015

1931kkkk

1742 92nd Avenue

1921 – M. P. Amaral

1 August 2015

1921q

9000 block Plymouth Street

There’s a chance that this is 1926, like previous examples I’ve found.

1914 – Hutchinson Co.

31 July 2015

1914ww

Cherry Street at 92nd Avenue

Each corner of 92nd between Bancroft and International has this mark.

1992 – H. W.

30 July 2015

1992d

1501 90th Avenue

Most of the pavement in front of the Elmhurst Baptist Church is not marked, but this patch is.

1970 – A.B.C. Concrete

29 July 2015

1970g

9034 D Street

At this late stage in my survey of Oakland, it’s safe to say that the set of several marks on this property are the city’s best example of A.B.C. Concrete stamps.

1968 – A-1 Able

28 July 2015

1968e

1366 91st Avenue

1941 – C. Valenzuela

27 July 2015

1941hhh

1323 91st Avenue

Valenzuela marks from the 1940s are quite rare.