1380 102nd Avenue
It looks like N. Lena may have modified a stamp with a “191X” date to make this. But I have no evidence that he was active before 1920, so who knows.
54th Street at Gaskill Street
Some time between 1912 and 1936, Park Street had its name changed to Gaskill Street, but they left the concrete alone.
Once again I’ve run short of sidewalk stamps. For a few days I’ll be running some special marks that have caught my eye during my long survey of Oakland sidewalks.