Different year on a N#35049 Lithuanian 1/2 groat, 1519

After some trial and error, determined this coin of mine is N#35049, but noticed the dates run out at 1518, but mine appears to be one year later. Wonder if this is a new year to add, or am I missing something?

Pictures are not the best, but can be made out. Could be 1516 with an inverted 6 looking like a 9? Weighs out at 1.12g, so slightly lower weight probably from circulation rub…

There are three pages for ½ groat by Sigismund the Old. Your coin is on other two.

1519 coin got at least 19 variants. 

N#130413

https://en.numista.com/catalogue/pieces63424.html

1516 does not have inverted 9 variant and they are less common than 1519.