pug dog sat pepper shakers

This is a set of salt/pepper shakers, I believe they are pewter, when I tried cleaning them with silver polish they stayed the dark pewter color.  The dogs have small plastic eye glued into them.  The shoes look like actual shoes on the bottom with raised metal for the shoe thread and heels,  I got them from my mother who I beleive got them from her mother, my mother is 73.