Even though I use Google docs, I can't get that page to display comfortable for my tired old eyes. Maybe on my bigger laptop. I'm making my own spreadsheet based on the machines I own and packages I own, and I'll add that info to it. I didn't see that chart listed very many of the Boye #'s, seemed to focus on Singers? I scored quite a few of those Eldredge NOS needles (70!) But it's good to remember that Boye #21's will work.