In an online add for some checkers the following notation was found "1930's IPC Standard wooden checkers made by I.P.C. Universal Corp. in Albany, NY.".
In a picture on Picasa Bruce Whitehill has a game named Land and Water Battle Game. In bold letters in the lower right is the notation:
W. C. & C. R. Martineau
In the lower left on the margin, in small letters IPC Universal Corp. Albany, NY