Buescher 212 aka the "Symphony" Trumpet
Sold in 1928 - 1930 (approximately)
19 1/2" in length
Bell Diameter - 4 1/2"
Believed to be the Model that followed the 10-22 model
Made in Bb with a quick change to A slide
Said to be Identiacal to the 214 model, but the 214 did not some with the quick change to A slide.
Both model were said to be "General Purpose Trumpets"
1930 Buescher Catalog