Genuine Bernina Metal Bobbin 830 Record Set Of 3

This set of 3 genuine Bernina metal bobbins has BB engraved on the top and bottom. They came with a vintage Bernina 830 Record sewing machine and i cannot specify what other machines the fit.
Most of the bobbins come with thread. My supposition is that most of it is dual duty (not pure cotton) because of the spools of thread, which also came with the machine.
Since t here are so many colors, feel free to let me know what colors you might prefer and I’ll do my best to send those.
I am happy to combine shipping if you buy multiple sets. Please let me know before you pay so I can make shipping as economical as possible.