WANDERING ROCKS
"- Smart idea, Nosey Flynn said, snuffling. So a fellow coming in late can see what turn is on and what turns are over. " (U10.479)
Eamonn found the patent application #27,617 titled "Improvements in Programme Indicators for Theatres of Varieties, Music Hall and the like", for an invention by Thomas Henry Rochford (19 Wellington Quay, Dublin, Engineer), dated 1908, detailing its construction, mechanism, and usefulness.