Merry Christmas, dear readers, all two or three of you! Today I thought I would share something simple but puzzling. I have noticed these marks on the sidewalk in front of the big old Tudor house on Jerome Street. No, not this one, the other big old Tudor house on Jerome Street, on the northwest corner of Jerome and Horton. There are three of these geometric marks on the sidewalk in front of that house, and I don’t know what they are.

I think I have noticed markings like this in one other place on the east side (in the Prospect Place neighborhood, if I remember correctly). They seem too utilitarian and asymmetric to be purely decorative, but then, what do they do? If anyone knows or has a guess I would be interested to hear it.