Alter, the name of the sake shop is Koaminaka, between Sumiyoshi and Rokkomichi. go there on a weekday and, if you speak some Japanese and you show an interest in sake, they'll give you all sorts of samples. very nice people, and lots...
Alter, i once lived in the same area. have you visited any of the distilleries in Higashi-Nada-ku? i used to go on the weekends for lunch with a flight of sakes. really fun. also, i know a GREAT sake shop near Rokkomichi.
the first tag looks like, as you guessed, a dry-cleaner's tag, with the date on one side and the customer's name on the other.
the content label says:
wool: 40
rayon: 40
nylon: 10
polyester: 10