If you don't get any help here (other than mine), go to Brian Ewing's Ornamental Plaster Page. (It takes a little to load up and it uses JAVA.) He has a Forum and an Archive that you can peruse. He even has direct e-mail which I'd only use as a last resort!
If you go there, do mention that Jay J at renovateyourworld.com sent ya. (It's been a while since we've seen him here BUT he has his hands full!) My best to ya and hope this helps.