In the twenties and thirties, there were two kinds of porters: red caps and green caps. The first helped with luggage, the latter delivered messages. There are no caps at the GCT now, only at Penn Station.
The constellations that one sees on the ceiling in the main room are not how they appear in the sky to us. Rather, as they appear to ‘God’ done by the French painter Paul Helleu who copied the idea from what he found on a medieval manuscript.