for italian 100's lire 1991 there are two records
https://en.numista.com/catalogue/pieces2551.html
it's correct because there is
"99" in date with rounded tail
that is different from that
"99" in date with straight tail
Please can you split the 1990's one?
"99" in date with straight tail AND "99" with rounded tail ARE in the same record
thank you very much