9949 Voltaire Avenue
The Ransome Company has been around from more than a century and still does business out of San Leandro, yet a mere handful of its sidewalk stamps are extant. My guess is that sidewalks were only an occasional sideline.
1417 100th Avenue
This same year, Moniz and Johnson used a proper stamp, unlike most of Arthur Moniz’s collaborations. The risk with hand-drawn marks was that names could be misspelled.