Brick Graffiti- B.M. “B. M.” Brick Graffiti Series. Similar Images ...based on the tags: brick-graffiti, worker-graffiti... “N.L. ’45”. Brick Graffiti Series. A sign hanging near the shop office. Miscellaneous math and strange instructions remain all across the shipment section walls. Sadly, this section likely fell into disrepair before the others. A chalkboard halfway to the headhouse is untouched since the mill closed. It still has the cheat sheets! In the soft wood of the machine, an employee left their mark. Moon of M.R. 5-22-1985. Brick Graffiti Series. A little welding art one crosses over near the windlass room. The corners of these buildings are inscribed by a century of bored rail workers and delivery drivers. Pictured is the southeast corner of the Twohy, which is typical of mercantiles. Carvings on the back of a barracks building.