1-1/8" thin tin rim with full color cello insert of Presidents Washington through McKinley. Reverse has fold-out wire easel and covered tin back reading "King Bee Tobacco And Cigarettes" at the center with rim text "City Button Works New York Patented February 23, 1897." Tiny tan mark on edge of Polk. Others are Exc. and many are Mint. Only the 1897 set by Whitehead & Hoag was issued as early as this, but these are many times more rare and full color easels rather than b/w buttons. The only full set known to us.