What brand flatwounds are these?

I need some help identifying a string. I was given set of flatwounds by someone (the original packaging was gone) and I have no idea what brand they are. They have about an inch of green silk on the ball end, and no wrapping at all at the tuner end. Does anyone have an idea of what they might be? It is a 4 string set, and I may want to try and find the B that matches. Any help would be appreciated.

 

Thanks for the quick responses!