Well this IS something different!
The script on the base is early, pre-dating the tool that vibrated from side to side, the colour is amethyst, making it early too.
There has been a dip mould used, so that makes it not early, early early.
Mid-'70s, probably?
It's beautifully made. I personally have strong Boffo suspicions. No proof, no evidence.
Did wfs make apples?