Antique 1912 advertising poster by Ludwig Hohlwein promoting a dog exhibition in Frankfurt, Germany and depicting a whippet dog in silhouette. ludwig hohlwein,greyhound art,whippet art,dog show poster,vintage dog show,hunde asstellung,german advertising poster,1912 advertising poster,affiche,vintage german advertising,german graphic design,vintage greyhound,poster art,canine art,vintage dog,publicites,frankfurt,westminster dog show