So recently, I bought a double bass from a bass veteran in the area, and along with it came these old steel strings. Thinking nothing of them, I bought a new pair of Olivs and put them on, replacing the old gut strings. Unsatisfied with the Oliv's scratchy arco tone, I decided to give these old steel strings a try, and they were awsome, both for jazz and arco. So I want to buy a fresh set, but unfortunately, I have no idea what kind of strings they are! They have red silk at the bottom end, which extend fairly far up the string. At the top I think is red silk too, although, I'm not sure because the strings are so frayed at the top. The sound can be characterized as bright, both for pizz and arco. Can someone help me identify these strings?