1c, 2c Kans., 1-1/2c, 9c Nebr. Ovpts. (658, 660, 670, 678). Single usages tied on Emeigh "KANSAS" and "NEBRASKA" cacheted covers tied by Washington D.C. May 1 1929 First Day slogan machine or grid duplex handstamp circular datestamps, Fine-Very Fine, very scarce lot