Vintage order Crewel Wool Floral Embroidered Fabric, 1970s, BTY

Vintage Crewel Wool Floral Embroidered Fabric, 1970s

The threads on this are wool, did a burn test and it was ash order when burnt. Embroidered on a medium weight canvas which could be a cotton or cotton blend. Edges of fabric are aged. Fabric should be cleaned. Not sure of the best method.
I have 6.5 yards total