Howard Friedman writes about these reissues:
"In March 1924 the Gramophone Company decided to issue almost all of their International Celebrity Artists recordings on double-sided discs. These all had red labels. [...] The record numbers began with DA 100 and DB 100 for 10- and 12-inch discs, respectively."
So the original release date shouldn't be 1923, but March 1924.
In March 1924, the Gramophone Co. issued its catalog of His Master's Voice "Double-Sided Celebrity Records". For these Tamagno records, however, the customer was told to refer to Catalogue Nr. 2 Records of Unique and Historic Interest.
The B side bears a "Historical Record" label, which means the record was no longer in the General Catalogue but in the Catalogue Nr. 2: Records of Unique and Historic Interest.
Still, that style was last used in 1934. To see it being used up and combined with a new label _12_ years later seems unusual.
Now I wonder if both of these labels did indeed come from the same record? I'm asking because the A side is a post WW2 label, the B side a pre-WW2 label.