In the 1 Maltese Lira coin km # 99, from 1991 to 2007, in the comment line of each year it indicates km # 99.1 from 1991 to 1995 and km # 99.2 from 2000 to 2007. I have not found that differentiation in any Krause catalog of which I have or in any online catalog. I think that only km # 99 exists for all years, where does this differentiation of km's come from?
The other denominations have the same problem. They are Km#93 to #98. In my collection I have written a public comment with each coin stating that there is not enough to differentiate by mint. Only the 50c Km#98 I do not have in my collection so I can't check it.
But it would seem that for all these denominations the distinction Km# .1 or .2 is wrong.