Hello good people, I picked up this old Kaman bass from the early 90s and I absolutely love the strings that were on it. They sound so smooth and sweet. They appear to be round wound nickel or stainless. Despite being old and worn they still have good sustain, great flexibility and response, and just sound pure and fundamental. They have very unique ball ends which I haven't seen before, with no hole in the middle. And they have a tighter outer wrap than other brands I've seen. I removed them and put a set of GHS boomers on and the new strings were awful, no sustain, and the low E just had a terrible metallic bloom that quickly died after initial attack. So I put these old strings back on and i was back in business. I measured the guages with my digital caliper and repeatedly got these results: E-97, A-73, D-56, G-40. Any help identifying these would be awesome. Thanks! The last pic is a comparison with GHS string with larger outer wire wrap.