So what is it called? It's "Chu-gaku Imo" (Yamadai Foods) instead of "Daigaku Imo" because of their size difference. Chu-gaku = highschool, Daigaku = University lol
Imo means potato.
Daigaku Imo was created i.n Taisho Era. (Rod,!) It says the campus was Tokyo University.
It's a piece of Yo-shoku.
So this is Taishō era Yoshoku. I wonder what the next size up 😉