I thought I had a good knowledge of many
types of needlework, knitting, crochet etc.,
but I have never heard of "Sobritto".
I was wondering if anyone might be able to
tell me what this is?
A quick look on the internet came up
The above vintage advertisement for
WM Briggs & Co. shows three books
published on the subject.
Added later - well, on further seeking,
I have now discovered that "Sobritto"
is the name of a type of rayon yarn with
which to crochet. Not so much of a technique
but a brand name.