Hi Jean, and Welcome from me too.....
Tigerchips a.k.a
or TC has pointed you to the perfect direction.
I too could not make out the small print on the site either, BUT I highlighted the image there, then carried it over to Microsoft word, pasted it there.....then used the
*zoom image* there to increase the size of the *image* writing to 500%.....
It looks like it says 1958 -> with an arrow behind it -- then there is a mark after that, but I still can not figure out -- even at 500% zoom. Looks like a Russian mark of some sort after the arrow....
Hope that helps some.....and Welcome again.