Maggie & Jiggs Shakers Set

Found this cute set of what it look like Maggie & Jiggs .
Any collector out there who can tell me more about them ?.
They have a real cork stopper on the bottom, and measure around 3 1/4" . Both have 5 wholes on top.
Look like they have a mark or number on the back but impossible to read them under the (glaze) paint.

Any idea of age and value ..... if they are original or copy ?

Thanks....