It still has its original paper label that states: 'STRUTT'S CANDLEWICK COTTON 10Z SKEIN ART. NO. F244 SHADE WHITE' as well as giving instructions on how to use the skein.
https://trc-images.nl/collection_images/hires/2020/2020.1084.JPG#\\TRC-SERVER\TRCSharedWork\TRC Database\collection%20photographs\2020.1000\2020.1084.JPG#
A skein of thick white cotton yarn for candlewick embroidery.