This is one of those curiosities that pepper this blog, quirky stamps that I can’t quite explain. It’s on the east side of Horton Avenue between Jerome and the northern dead end. It’s an old-style Department of Public Works stamp, and it appears to have a month (May) but no year.

In the early days, the DPW stamped a full date: month, day, and year. By the 1920s they switched to stamping just the month and year, and sometime between 1924 and 1927 they switched to year only. You might think that the year has just worn off, since the stamp is generally quite worn. But that is hard to believe. There isn’t any leftover impression of it at all, for one thing. Even stranger is the placement of “May,” centered below the name. In the month/year and month/day/year stamps, the month is off to the left, not centered. It really does look like they just stamped “May”!