1-11/16x2-3/8". Blank gummed reverse has some gray spots but not much effecting the front other than pale pink dot on right margin and very slight off-yellow mark at bottom right corner. Great design of black cat with tail printing "The Heel With Nine Lives" and with man showing his exaggerated shoe sole with him pointing at the "Foster Plug/Prevents Slipping." Exc. Morry Greener Collection.