R. Guilleminot, Bœspflug et Cie

This firm is actually the supplier of photographic paper, in the form of preprinted postcard sheets, and not the publisher of any particular card. The cards normally have the name up the left hand side, and often but not always the horse/shoe logo in the middle at the top. Guilleminot, Bœspflug et Cie produced photograpic plates and papers from 1858 to 1994.