Jon,
Yes, the Boye 22. I have machines for the other 11 Boye shuttles. I'm not after a machine to take each of the Boye needles, though I think I'm pretty close there without meaning too.
Let's see 2-Household, yep, 2.5 Free/New Home Rotary, SewHandy - yep, 4 New Home VS machines, yep, 6, Standard VS machines -Yep, 8 Demorest, Domestic -yep, 10 Davis machines (not oldest or newest) - yep, 12, White, New Florence -yep, 14 National machines- yep, 16 - Singer, later Davis, Yep, 18 WW 9,yep 20 Davis - old yep, 20.5 Wilcox Gibs, National Automatic - yep, 21 not sure, says "Damascus Grand Rotary" and I'm getting one, but they also made this name with the later machine that takes a different needle. This would be for the earlier version. 23 -Singer round shank - possibly, not sure though. 24 Royal St. John, yep, 26 American #7 - yep, 27 WW #8 - nope.
Darn it about the Boye case, I was hoping it was the older one where they had White and Singer numbers switched (along with several others) I wasn't thinking about that the very last White VS machine took the Singer style shuttle/needle. On a good note, she did say it had a lot of tubs in it, so all is not lost. I should have asked her what number was listed for Singer - the pre 1907 cases have it listed as 11/12 and the post 1906 ones have it 15/16
I have several tubes from an old case, and they have the "other" ones in them. Something to be aware of if buying old Boye stock - the really old stuff is numbered differently. At least it's real easy to tell a White shuttle from a Singer shuttle.