I’ve been working on this one for a while. I know it says law 50/1940 but it says that on Egyptian banknotes up to the 80s. I think the key to narrowing down the date may be the finance ministers signature but I can’t find anything online with that same signature. Any help would be greatly appreciated!
This may help your search. http://www.numismatic.biz/sign/signaturechartegyptpapermoney.htm http://www.pjsymes.com.au/SigCharts/Egypt-sigs.htm
Can’t find the same signature there but. I did find it at this CGB numismatics auction: https://www.cgbfr.com/10-piastres-egypte-1940-p-168a- ttb,b93_0523,a.html And another: http://www.londoncoins.co.uk/?page=Pastresults&auc=166&searchlot=194&searchtype=2
The date ١٩٤٠ or 1940 is on the front and back, but it's unclear whether that refers exclusively to the passing of the monetary law or the issue date. I see this referred to as a 1940 note on the web, but it might be one of those tricky ones. You might need serial number references to date it more specifically.
I know, this is the passing date of the monetary law not the actual date. I have figured out it is between 1940 and 1952 because that's when the 1952 coup happened.
It may be similar to what we do with Series A, B, C, etc. notes that are issued well after the date that appears on the note.
Ironically, King Farouk (pictured on the OP's note) was a numismatist of sorts and owned one of the very few examples of the famed 1933 St. Gaudens double eagle and TWO of the 1913 Liberty Head nickels.