Years ago I bought a few packs of Vinci brand Class 1 Nickel 677 Light Special 10-46 (I have one pack left) in a hermetically sealed fresh lock baggie, - I can't believe I found this pack in the string gear box so easily.
I haven't been able to find them for years, I have a set on my SS2 that is at least 5 years old, probably a couple years older, I used to play that guitar quite a bit, but now it mostly sits in the soft case. All my other guitars that sit get rough corroded strings, I just pulled the SS2 out, the strings are still super smooth and easy to play, it stays in tune too, plenty good to leave on a guitar that only gets played once in a while. Washburn owned Vinci at that time, I'm guessing usmusiccorp stopped production?