Yes, it seems dumping on the Post Office, and its services
has a long history.

Threadneedle Street London, is famous,
Thread- needle Street is a corruption of " Three-Needle- Street,"
so called from the arms of the Needle Makers' Company.
Also, from the Free Dictionary (Farlex).
Threadneedle Street
Street in the City of London, England, running eastwards
from the Bank of England. The name of the street probably
indicates that the property once belonged to the
Needlemakers' Company (The Worshipful Company of
Needlemakers). The dramatist Richard Sheridan
gave the Bank of England the nickname 'the Old Lady of
Threadneedle Street'.
ack:blair
It is more famous to us because the Post Office Branch was close
to the London Stock Exchange, and had a premium busines postion,
you know what they say in Real Estate..."Location, Location, Location"

Map of London Threadneedle Street the following year:

Registration Cancelation Threadneedle Street April 1904
KE7 from my collection. indicating SE B.O. (Branch Office)
I think the main P.O. was Lombard Street.
