Possibly worked direct on off-white wool fabric.
Floral design worked in a variety of straight stitches with a few chain & buttonhole stitches.
All worked in wool yarn in a variety of colours - reverse side is brighter. Edge has first been hand rolled & stitched, then overstitched in 3 rows of stem stitch.
Size circle diameter 10.5” (27cm)
(Likely a mat used for decorative, celebratory or religious purposes)