Vintage micromesh durable seamfree 30 denier non-stretch stockings with RHT (Reinforced Heel and Toe), made in Italy. The stockings are knit in polyamide (aka nylon); and have a plain knit stocking top (70mm), with a deeper-than-usual underwelt (40mm). The knit changes from micromesh to slinky plain knit under the foot - extending from the reinforced heel to the reinforced toe - for additional sensuous comfort.
These classic nylons are supplied in the original polythene packs, and, we would suggest that they date from the late 1960's.
We suspect that these stockings are made by 'Sisi' (i.e. Isis reversed), because the colour coding/numeration corresponds with that used by Sisi.