1.75" with beautiful color depiction of the overly-polite duo against blank cream bkg. where the button maker would put the desired message. Button is W&H with their backpaper and the button c. 1903. Cream bkg. has couple very tiny and hardly noticeable faint gray age marks plus couple of very minor surface scratches that only catch reflected light. Still displays Exc. with high gloss. Only example we've seen without imprint. Rare.