Fine quality Zwicky sewing silks dates from the 1960/70's and has been stored wrapped in cellophane in their original boxes.
These are size 70/3 on 420 meter spools.
I used Zwicky silks like these for many years weaving scarves, fabric and making tassels as shown the the pictures with the silk.
Also perfect for gold work and embroidery.
These are an antique gold.
Price is per spool.