1979 Mexican 10 Centavos

I have a 1979 Mexican 10 centavos coin. I observe its features as 1979 narrow date (Not Wide), semi blunt stem, 6 rows of corn and Bold "10". Which km number should I place it in, km434.2 or km434.4?

Thanks,
James

I think I will let the other guys help with this. Have not had time to sort out mine yet.

Hi,

you can find my documentation in the comments.... https://en.numista.com/catalogue/pieces3157.html, it tells all there is to know, I think

Ole