I took Melissa Kean on a tour of the south end of HRS last week, and this is one of the things we found. I'd been in this room before, but hadn't opened the doors on this cabinet before.



It was installed in 1968 by General Scoreboards to control the team names on the forerunner of this scoreboard.
As this scoreboard is atop the R-Room, it may or may not be the same one that existed in 1968, before there was an R-Room. I haven't been able to find any images of the scoreboard between 1968 and the building of the R-Room.