Historical version 4 of Colinette Giotto (view current version)
Beautiful shimmery cotton and rayon tape. It's lovely to knit with, and is gorgeously drapey. It does tangle very easily, though, and it's quite slippery.
Metres per 100gms 115 metres to 100gms
Tension/gauge 14sts and 19 rows to 10cm(4ins) measured over stocking stitch on 6mm needles.
More details on the Colinette site.