Japanese 4 Travel posters for Hokkaido

Japanese 4 Travel posters for Hokkaido- 1.) H. Miyashita- Hakodate Trade Association; 2.) T. Aoki- Hakodate Japan - Mt. Esan; and 3.) Unknown- The Festivity of Hakodate - Port; 4.) Ichiro Yotsuji- "Trade-Port Otaru, Hokkaido Japan"- 4 gouache on paper, all signed (1 illegibly and 'Otaru' in Japanese verso), all stamped along bottom 'Loaned by Central Outdoor Advertising Co. Inc., Cleveland, Ohio', 2 with labels at bottom 'Northen Propaganda Artist Group', all previouslly rolled, rough edges with small tears, minor scuffing, handling creases and spots of paint loss scattered. 43 x 30 1/2" ea. sheet (2); 43 x 31" (sheet); 28 1/4 x 40" (sheet)