Re: Excuse me ..
Alas these things come from a time before the computerised records and instant worldwide communications we have today. They were also hand made and subject to on the spot improvisations. During the war they’ll have been MacGyvered and cannibalised to keep them in the air. The chances are that all the above is true depending on where you were in the world at the time and whether or not the communication to name things differently had filtered down to you. When the builder finally did get instructions to change the name, he probably thought "Oh, I'll just use up the remainder of this box of serial plates before getting some more made".