Certainly an old rustic look to threse three glass Christmas tree ornaments.  So suitable for your farmhouse decorating.

The three glass ornaments are marked Poland on the tin cap and probably date from the 1930's.  Perhaps even from the 1920's.

One is a glass ball while the other two have glass pontifs at the one end.  Some handpainting and coloration, which defintely is worn.  Still.... isn't that in a way making them more charming? 

All are about  2 to 2-1/2" wide.