Hi Luna
We can't look in eachothers pedigree by ID.
But I can tell your Ocicat Tawny must have hide Snowshoe Red and because the Balinese Seal is more Recessive than the Snowshoe Red it was possible to make the hidden fur of your Tawny visable.
So this snowshoe Red hides a Seal Lynx or what the Seal Lynx hides.
I hope this helped
What a precious little kitty that is by the way!
EDIT This fur isn't really rare in the sence it excists quite a while already in general the rarity of a fur is depends highly on how much it is bred.
Some furs of the Chateau line for example are very rare while it is a common fur simply because they are not bred as much as others so if you look on the markets you will notice how rare your snowshoe is as in how much you see them.