SPAKE MAG B.M. 507.885
August 25, 2015 6:09 PM Subscribe
What does B.M. 507.885 with a little metal cap next to it embossed SPAKE MAG mean? I saw this very carefully (and kind of beautifully) added to some concrete edging near the Southwestern Bell Telephone Building in my neighborhood and I'm wondering what it might mean. Construction symbols? Telecom stuff? A secret code or artwork of some sort?