310 Magnolia Avenue, Piedmont
1977 – A. J. Ferrero
2 March 20181974 – M. Andrade & Son
1 March 2018
Holly Place at Manor Drive, Piedmont
1960 – C. Valenzuela
24 February 2018
126 Ricardo Avenue, Piedmont
This gives me a single and a double mark from this year with the stamped date.
1937 – Ed Doty (master 13)
16 February 2018
This mark, from Howard Avenue in Piedmont, documents two things. First, it shows that distinguished sidewalk maker Ed Doty held “Master Concrete” number 13, in addition to numbers 16 (1937-38) and 17 (1938-45).
Second, it shows that Doty switched from this stamp to the curved configuration, which incorporates the Master Concrete bug inside, some time between April and September 1937, when he used Master Concrete number 16.
1982 – A. J. Ferrero
21 January 2018
32 Greenbank Avenue, Piedmont
This mark extends Ferrero’s dates into the 1980s. It’s also only the second proper stamp I’ve ever found from 1982.
1938 – Ed Doty (master 17)
20 January 2018
965 Rose Street, Piedmont
This mark establishes the change from Concrete Master 16 to 17 as having taken place early in 1938.
1928 – Ed Doty
19 January 2018
573 Wesley Avenue
This version of Doty’s second-oldest stamp used a dot in the date instead of a dash.
Oakland Underfoot 