1963 Valiant 'vert door latch latch (?) not working

Thank you sir for your prompt reply and your 3 suggestions.
I probably should have posted pics with my original post.
Thanks for your pics, I can see the differences and yes the top pics are similar to my '63.
Bottom pics look like the Aussie Valiants.

I did try the "push inside handle forward" method that you suggested but no go.
Striker appears to be right where it always has been.

Looks like I am on the lookout for another latch.
I'll check US Ebay and fb page, might get lucky.

Thanks again for your help.
Regards
Gary