This cone started out at 1 lb. (1240 yds) and currently has about 9.5 oz. left on it. I estimate this to be about 735 yds. Third picture shows it knitted up as a baby bonnet.
From the manufacturer's website:
Jasmine is lustrous, shimmery cultivated French silk. Extremely soft, this yarn drapes beautifully and is known for its ability to wick moisture from the body and adapt to body temperatures. It remains delicious against the skin in both warm and cool climates.
Content: 100% Mulberry Silk
Knitting Weight / Gauge: Light Worsted (#4) - 20 st / 24 rows per 4 cm / 10 in; 18 wpi
Needle Size: 5 mm (US #8)
Country of Origin: France
Care: Dry clean or hand wash gently in cool water. Lay flat to dry.