Agree, not Permanents. I don't think they're Pirastro strings. I don't recognize them as such. My gut said "those might be some type of Corelli", but I have no idea what I might be basing that on.
My friend is surprised by the Helicore. He says these strings are on a very old, very valuable instrument (not his). Hey, whatever works. Every pot has a cover.
You know what? Shame on me. Those are Original Flat Chromes. I have a G string on my bass now and just looked at it. In my mind, the spiral was purple for some reason, it's a match with the photo above.
Oh I’m not doubting you. I think maybe my friend was surprised to find a “budget” string on an expensive instrument. Or more likely was just expressing the facc that he himself doesn’t like them!
OFC are white with a dark purple twist. The photo is absolutely potato but the silks sure look like yellow with an electric blue twist to me. A better, clearer picture can only help.
Are you sure you're not thinking of the Flat Chromesteels? The silks on those look more dark purple to me, whereas the Original Flat Chromes look more blue. I also remember reading somewhere that A Heli Orch E or E/C with OFC A D G is a relatively common orchestral set, which really makes think those are OFCs. I could be wrong though.
It’s an old shot — somebody he used to study with from the BSO. He studied with a few guys from that section.
Here's a phone photo of the Pirastro G string on my bass. If they are Pirastro strings, the peg-box end silks will be" A= black/violet D=red/violet G=brown/violet