Gotz strings

[Eddue]

I recently found unopened set of Gotz multiflexible bass strings. I had them for years but never used them and now wonder if anyone here has ever used them. Most of the writing on the packaging is in german.
They are stranded core flatwound steel strings, black silk at the tailpiece with a silver colored ball (like double donuts) and at the peg end green silk with a gold colored wire wrapped before the silk begin and then wrapped over the green silk in a crossed (lattice) pattern .

Package numbers for each string E4= no. 7114, A3= no. 7113, D2= no. 7112 and G1= no. 7111

I also have another E string in slightly different packaging.
"Bass E No. 298B" is hand written

"Pfitzner string for Double Bass" is printed as "C.A. Gotz Jr" and the Germany address.

I hope someone here has some knowledge of these strings. I did search Gotz here and got a few post on their gut strings but nothing on their steel strings. Sorry no digital picture at this time

Thanks

[Eddue]

I guess no one here is familiar with this string. I thought they might be a decent string since some here have used and liked their gut strings.