As far as I know [Krause is my reference] that Egyptian coins in the time of King Farouk were minted in either;
BP – Budapest, Hungary
H – Birmingham, England
KN – King's Norton, England
So, finding an error in these coins would be something special at least to me.
In this coin we are examining, and according to a friend's opinion uptill now there is THREE errors in the same coin.
a die crack,
and probably a filled die (middle arrow),
As for the 7 in the date, Could be a piece of metal on the right that got pressed on to the coin when it got struck
Would appreciate any comments.