value of Italy 10 Lire 1926 rare coin

Hi, will appreciate your view re the value of this 10 Lire coin. I see different values on different catalogs...

https://www.ngccoin.com/price-guide/world/italy-10-lire-km-68.1-1926-1934-cuid-1124794-duid-1471647

Beautiful coin. Yes, I see the value is all over the place. I'm seeing $75 U.S. to $550 U.S. at VF -XF depending where you look. Here is a graded MS62 and what it actually realized a few years back. http://www.coinfactswiki.com/wiki/Italy_1926-R_10_lire_KM-68

With respect to them, I do not believe NGC is a good source for pricing any European coin worth more than 20 euros- for finding the coin's market value I suggest checking this page out:
https://numismatica-italiana.lamoneta.it/passaggi/W-VE3/35-0?k=2&page=3

can you show a picture of the edge of your coin?

Here is the edge of this coin:

please try some silver tests:
http://www.silvercoins.com/fake-silver-coins-14-ways-to-spot-counterfeits/

https://moneterare.net/en/10-lire-coins/#10_lire_coins_1926-1934_biga