Your B&D Senorita tenor banjo was manufactured by Gretsch (The Fred Gretsch Manufacturing Co.) Brooklyn, N.Y. Gretsch bought the Bacon Banjo Co. in 1940 and made B&D/Bacon branded banjos up into the early 1970's. We've had a heck of a time coming up with a serial number date chart for Gretsch made B&D/Bacon banjos and I don't think one exists. I collected many serial numbers for the Gretsch B&D Serenader model (the next model up from the Senorita) and came up with a rough serial number date chart for that model. In my chart S/N 7884 comes up as 1955 build date. Hope this helps a little bit. You can see a collection of Gretsch B&D/Bacon serial numbers at the bottom of Polle Flaunoe's super database here:
As mentioned by John Hoft above Gretsch´s use of many different serial number sequences after WW II is a real mess - some have been more or less "solved" - but others haven´t. Do have a look at my database as linked by John.
Your Senorita has the same great 5-ply maple rim as used by Bacon in the 20s and 30s - and it has the original Bacon design - with engraved/painted Ivoroid everywhere - inclusive of the fretboard.
Later Gretsch changed the design - now the model got an ebony fretboard with MOP inlays. I can´t for now remember when the change was made - my guess will be mid 60s.
My estimate for a dating will be mid/late 50s or maybe even very early 60s.
Your example seems to be in excellent condition - once set up in the best possible way it should become an indeed great performer.
I´ll include it in my database.
Edited by - Polle Flaunoe on 01/16/2021 00:27:45
'Trust' 2 hrs
'Primative banjo' 3 hrs