Nepal: link and opinions [solved]

I'm a little lost for this coin. I found a like coin but it didn't include the year of my coin. Can anyone help me with what may seem like a silly problem?

27mm and 7.7-7.8ish grams.

Also on the obverse, above the trident by the rim, there isn't a diamond like the other 3 sides, I saw this design in one coin but again, it didn't have my year. Am I missing something?

https://en.numista.com/catalogue/pieces4277.html

year 2030 or 1973

Thx, I was just unsure with all of the differences.