Originals: Bright Embroidered Slippers, 1855-65

 I love these:

Embroidered Wool Slippers, c.1855-1865, from Historic New England.

The description says that these are wool with embroidery and silk lining. I really love the contrast between the white ground exterior and the bright scarlet trim/bow/lining.

Zooming in close (thank you for the high resolution photos!), the embroidery appears to mostly be in chain-stitch, with applique (the red shapes and green and blue rosettes) and gold couched threads. At least two of those chain-stitch lines are done in alternating colors.