Hello STG,
Having found nothing further regarding the Belga Importing Co. Ltd., I felt it prudent to see what might emerge from a search of the London Electoral Registers 1832-1965.
Somewhat unhelpfully, this revealed that, from 1946 until his death in 1969, one elector consistently present at no. 89 was Sir Edward Stanley Gotch Robinson - quondam Keeper of the Coins at the BM.
However, returning to the address provided on the medals card, what does strike me as significant is that the card is not endorsed with such as: "medals returned - undelivered/undeliverable". Which means, for me, that they successfully reached their destination.
Which in turn implies that the use of BM as the principal delivery address was something that was well known to the sorters at the nearby Mount Pleasant Sorting Office, and also to the posties who would have been delivering mail by the sackful to the museum. Regarding 'Belga', this could well have been an internal location which would not have played any part in the external delivery process.
Willyam
