2627 56th Avenue
A much better example of this mark and year than what I had before.
Seminary Avenue at Walnut Street
There are two of these at this address, both of them cracked, but they’re far less cracked than the example I showed before.
2915 Madera Avenue
1959 was the last year in which Valenzuela left his marks doubled-up like this; also the last year he used his nice metal numerals to make the dates (like this one from June). This appears to show that he had given those up by early October.