This #ToynbeeTile lives in west Philly near #UPenn. You can see the classic white on black with a red border in the center, plus auxiliary plaques above (white) and below (blue). Unfortunately, the text on the plaques was quite degraded by the time I verified this tile, so all I can make out is a typical exhortation to “make & glue tiles”. I believe there are older images extant with more legible text, but need to find them. #toynbee #streetart #art #mastoart #graffiti #graffitiart #photography