Many historic instruments, especially wind instruments sold in the 1910s-1930s came in two separate pitch classes, Low Pitch and High Pitch.
Companies that commonly made Low & High pitch instrument include C. G. Conn and Buescher.

Low pitch instruments match our current understanding of orchestral pitch and are pitched to A=439 or A=440.
High pitch instruments are pitched to A=457 to A=460.

This is a rather confusing setup and I have yet to find good concise information about what the two tunings were in an exact sense.
Expect this to expand to an essay when I know more information