This is a pretty vintage soutache (Russian braid) edged velvet trim that was manufactured in now ceased textile factories & mills of Derbyshire/Nottinghamshire. 
It was specifically made for lampshade makers though can be used for other soft furnishings, clothing and crafts.
Length: 1 metre
Width: 10mm approx
Sold in 1m lengths. Continuous length for purchases of more than 1m.