German, Guano Seal, Ohlendorff & Co. London, Image & Found by Dave8472.
Found Old Bexley in Kent, 22 x 23mm.
Cornucopia with TRADE above MARK below, Annulus around containing inscription OHLENDOR(FF ...) curving downward and (LON)DON curving upwards // GUANO with design above and below, inscription around (OHLEN)DORFF L(TD) curving downward and (SUP)ERPHOSPHATE curving upward
Ohlendorff & Co., was founded in 1858, transformed into the Anglo-Continentale corporation in 1883, taken over in 1937 by Fisons Ltd and closed in 1946.