Spain 5 Pesetas 1957 Star 57 Double Denomination [solved]

Hello !!
The coin is 1957 star 57 and in numista for this year it says exact year unknown . should we add it on numista for 57 star ?
https://en.numista.com/catalogue/pieces781.html .

also it has strike on both sides of the coin . does it have any value ?

Year unknow mean that we cannot read the date?...

Hello, Spanish issues before 1982 wore the Law date in the ‘head’ and and the date of coin issue in a star in the ‘tail’.
That 5 pesetas wears 1957 for every issue between 1958 and 1975. You can see those dates in the star.
No 57 star exists, this seems to be a manipulation of the star; quite common in Spanish star-date coins.
Regards.

Thank you . But we should add this star number 57 . cause it shows only exact year unknown

AbdelHaqqHello, Spanish issues before 1982 wore the Law date in the ‘head’ and and the date of coin issue in a star in the ‘tail’. 
That 5 pesetas wears 1957 for every issue between 1958 and 1975. You can see those dates in the star.
No 57 star exists, this seems to be a manipulation of the star; quite common in Spanish star-date coins.
Regards.

I have many with 57 in the star.. is this a counterfeit?

Well, this coin with a 57 in the star is not a legit issue.

 

Could you provide a clear picture, anyway? I've never seen one of those “57 in the star”… 🥲

Sure! I'll do it tomorrow ☺️

World-CoinsHello !! 
The coin is 1957 star 57 and in numista for this year it says exact year unknown . should we add it on numista for 57 star ? 
N#781 . 

also it has strike on both sides of the coin . does it have any value ? 

59 not 57.