Original Shires Bass Bell Taper?

[mbtrombone]

Hi everyone,

I was lucky enough to buy an earlier example of a Shires Bass Trombone bell with the original engraving, but it is only marked as a 1Y on the Tuning Slide Receiver (not under the bell between them two mounting points). I was wondering if anyone knew what Taper (BI or BII) Steve was making when there was only one Taper for bass trombone bells?

Thanks!

[GabrielRice]

BI

[mbtrombone]

Perfect! Thanks for the answer.