明治24年備中成羽 石田徳三郎 - 石田行道

All three postcards were sent from Nariwa, Bitchū in 1891. While there are clear connections among them, the nature of these relationships remains uncertain. The first card, addressed to 田渕真三郎 (Tabuchi Shinzaburō), was sent using Maeda’s address by 石田行道 (Ishida Yukimichi). The second postcard, sent to Maeda, mentions Tabuchi in the message. That card was sent by 石田徳三郎, who also sent the third postcard. We don't know the relationship between these two Ishida.