Hello
1. Flag is upside down
2. Almost all of these are names. Actully, I think all of them are names except for the big letters on the far right. Top four letters of the far right are illegible to me. 神力無?
3. Its addressed to Shimazu Genkichi.
Very interesting to see the name on the flag is Shimazu. Knowing that adds a little bit more history to the flag for me given the importance of the Shimazu clan.