"Scotland, Blue Bird" w/ black squares.
"Medal" w/red squares.
Unmarked gray ball w/black squares.
The surface of these first three balls appears lightly sanded and, in the opinion of the auctioneer, the colors in the squares are not original to these balls.
The Brown lattice-pattern ball appears to have its original paint in the squares. The original paint on the raised lattice pattern has simply worn off to reveal the original brown color of the material used to make the cover.