This is a piece by Paoli Bros, but also with two other Paoli members, Giancarlo and Giampaolo.
For more information on Paoli, click here
Update October 2017 – I have now found the original design submission
Lady bust by Paoli – Reg 900217 / 107
The site for everything to know about DURON, Paoli, Nieri and Bacci vintage african black chalkware / gypsum sculptures and figurines made in the 1950s and 1960s
1950s vintage chalkware statues 
Forgot to mention mine is numbered 107
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