RUBBER DUCK CALL.This Call Is made entirely of Knbber and will not shrink or swell. It is the best Duck Call made. A1I hunters have experienced this difficulty with the wooden call; because when a call shrinks or swells it changes tone/and to continue to blow it will do more damage than good. ’The Plug and Tongue of this Call are In one piece, ancl will not fall in pieces when taken apart. This Call is tuood to the perfect Immlta-tiou of a wild duck, and anyone with a little practice can immitate any Duck that files.Will SEND ONE TO SKY ADDRESS BY *Ml OR RECEIPT OF 75c KURUEU PICK CALL CO.,413 Fourth Street, Sioux City, Iowa.