1928 – J. Widell

17 December 2012

1928jjj

2913 82nd Avenue

Martinelli Bros.

16 December 2012

martinelli

3361 Partridge Avenue

I would bet a quarter that these guys are related to B. W. Martinelli, of Castro Valley. This mark is older, I am sure.

2009 – Paganelli

15 December 2012

2009b

6969 Broadway Terrace

Mr. Paganelli apparently was the owner rather than a concrete contractor.

2009 – All Seasons Construction

14 December 2012

2009c

2921 82nd Avenue

I happen to do business in the very building in Berkeley where All Seasons Construction is located. Small world.

2003 – Kevin and Aria

13 December 2012

2003c

6181 Ruthland Avenue

1960 – John Conti

12 December 2012

1960c

1472 Mountain Boulevard

E. H. Sundberg

11 December 2012

sundberg

4664 Dolores Avenue

Another company from the Bacon Block, joining Harry B. Williams and Golden Gate Construction Co.