
4192 Shafter Avenue

4192 Shafter Avenue

5672 Oak Grove Avenue

383 Bellevue Avenue
This W. M. Sharp mark is the first I’ve found, but I expect to find more as I explore around Lake Merritt and east.

5454 Boyd Avenue

5940 Chabot Crest

5748 Ivanhoe Road

5337 Shafter Avenue
Another in the series of Petersen marks, usually on driveways or curbs.