This stamp is on the front walk of a house on the west side of South Pennsylvania Avenue between Eureka and Prospect, the next house south from Monday’s F.N. Rounsville stamp.

I don’t recognize the contractor name and I’m not confident about it. It looks like “Basile” but there might be something worn away before that. I haven’t yet found a surefire match to the name. The best lead I have is that there is, or was, a company in Livonia called Peter A. Basile and Sons. In fact, I have just learned I am not the only person in Michigan taking photos of sidewalk stamps, as someone on Flickr has posted a photograph of a Peter A. Basile and Sons stamp in Detroit. And that led me to the very startling discovery of an entire Flickr pool of sidewalk stamps. Unfortunately, the last posting to its discussion board is someone a year ago complaining that the group admin has gone silent and it is no longer possible to get photos approved for the pool.

Update 5/12: Based on one I found on East Michigan Avenue, this probably originally read “Bond Basile.”