Yeah, like I said I was quite surprised to see that Valve left the original manufacturer logos intact even though they’ve removed the manufacturer logos from every single other model in the game. The only thing they didn’t get correct was the lettering on top, of course, though they both might have wanted to make it obvious that it was a fire ALARM pull station as well as possible copyright evasion. (they would have been directly copying the BG-12’s design had they left the original lettering on, and I know Valve supposedly had to change a car model slightly in Half-Life 2 because it looked too similar to the VW Golf) In a similar fashion I was also surprised to see Duke Nukem 3D’s HD Pack t-bar being an exact copy of an actual Simplex t-bar, even having the “SIMPLEX” lettering intact! (don’t these companies have to worry about getting sued for unauthorized use of other companies’ logos, though maybe they haven’t because fire alarms in video games are usually a small background detail that no one’s likely to notice)