Cathy,
Very nice picture reference. The two round bobbins on the left are for a Wheeler & Wilson 9 and D-9, a high demand low supply bobbin. The D-9 is fatter with a hole in the side.
I'd be lost on the Boye shuttles if it wasn't for the wood tube with ID number. The Davis Shuttle, Boye 9, is for all their full sized cylinder shuttle machines-- VF and UF. The 3/4 sized machines uses a shuttle not made by Boye.
Neat Stuff.
Jon