MANSON CAMPBELL CO. CHATHAM INCUBATOR (Uncle Sam and John Bull)

Pinback button advertising the Chatham Incubator made by the Manson Campbell Company of Chatham, Ontario and Detroit, MI. Shows Uncle Sam and John Bull in a tug of war match with the incubator. Sam is saying "IT'S A GOOD THING AND I WANT IT JOHNNY" to which John Bull replies "LET GO SAMMY!! YOUR MONROE DOCTRINE DOES NOT INCLUDE ALL THE GOOD THING IN AMERICA." 1 1/4" cello exhibits surface crazing, so take a good look at the photo. W. J. Woodburn & Son (Montreal) backpaper.