Hey.. nice pin !!
Here is what i know ......
the pin is an artist proof pin ( maybe only a handful are made for the pin designer to check if everything is fine with their design ... ) for an open edition pin that will appear at WDW later this year...
There are some collectors that like the AP pins, but in my opinion it will be only marginally higher in trade value than the regular pin .. If the final pin looks different in colour or design than you have a "hot" pin, because snow white seems to be the most popular princess...
Hope this helps ....
Stephan