Oh, that is a pretty lampshade! It's not your everyday shade, that's for sure. Here's a close-up of it and, to my eye, looks like it has crewelwork on it. Oakley, did you do that??
Lynn
{{!gwi}}

I checked eBay and found just a few, but the ones that are there are very pretty. There is a fairly new seller called 'crewelfabricworld' out of GA who has the ones I like, and the shipping is FREE. If they don't show a size you need, maybe email them to ask if they have others available?

Pottery Barn used to have a pretty one, but it's out of stock.

Joann Fabric (and I'm sure other places) sell make your own lamp shades that have a sticky surface for you to mount paper or fabric to. That may be an option to get something really custom for your lamp.

Here is a link that might be useful: crewel lampshades