E.C. Kropp Company "You can mail 5 postcards in an envelope for 2c"

Front:
DO yOU KNOW that you can mail 5 POST CARDS SEaled in an envelope for ONLY 2 POSTAGE? S secoorseph

Back:
22932 N 25 Please display this card prominently in your Post Card Rack or elsewhere. More local view card sales will result. E. C. KROPP COMPANY, Milwaukee, Wis.