Interesting information found when researching this pattern. Canonsburg China was started by John George who was related to W.S. George (who produced the Derwood plate I have listed on here, and you can really see the similarities). The trim in 22 Carat Gold. The business stayed in the family until the mid-70s. I believe the pattern to be the MaryAnn, after one of George's daughters, and possibly produced in the 50s,
