Thanks to Lorenzo Lotto, a 16th century painter from Venice, we get a full Christmas scene in 1970 for cards and letters courtesy of the US Post Office. The National Gallery of Art supplied the art. Check the full original here. It contains a crucifix edited out of the stamp presentation–it’s just beyond the left border.
Saint Joseph makes his US appearance on a Christmas stamp. I approve of that development, though not his older look. Tradition, I know.
In case any Americans wanted to send mail with a non-religious theme, they had an alternative. Four to play with, in fact. See below.