Bei Pearsall's Superfine (Langley Threads) handelt es sich um genau die gleiche Seide, die ursprünglich als Pearsall's Gossamer 6/0 bekannt war. Lediglich das Färbeverfahren und die Farbenvielfalt haben sich geändert. Die Füllmenge der Spulen beträgt 50 Meter Seidenfaden.

Hier die Information zur Superfine Silk:

 "We are Pearsalls Embroidery. We bought the business from Pearsalls Limited who still manufacture gossamer but do not have a web presence and use distributors rather than sell retail or wholesale. I have been working as a consultant to Pearsalls for many years and in fact used to dye the gossamer, naples, marabou and floss for them ..." und "Our superfine silk which you bought is exactly the same product as gossamer, we buy the undyed gossamer from them and dye it to embroidery standards, the original colours were, in the main, not suitable for use beyond fly dressing and rod whipping because of wash fastness. However, the new colours are still suitable for fly dressing even though they use different dyes.