Japanese Postage Stamps featuring Mount Fuji

A pair of mid-20th century Japanese postage stamps mounted in a philatelic collection. Both stamps feature a stylized depiction of Mount Fuji with an Imperial Chrysanthemum crest at the top. The stamp on the left is a 10 sen denomination in an orange-brown or terracotta hue, identified by the handwritten note below as the 1945-46 issue (Yvert 346). The stamp on the right is a 1 yen denomination in dark blue ink, identified as the 1946-47 issue (Yvert 355). These stamps reflect the transitional Showa era production, characterized by simplified, bold graphic design and utilitarian printing methods common during and immediately following World War II. The items appear to be printed on off-white or light grey paper and are mounted on a grid-patterned album page with typed Dutch-language text regarding volcanic activity. The blue 1 yen stamp shows visible cancellation marks, indicating it was postally used, while the 10 sen stamp appears cleaner but may also be used. Condition indicators show some slight tonal variations in the paper and minor alignment irregularities common to stamps of this period. The mounting uses black stamp hinges or mounts for protection.