Asakusa-nori from "Guide to Famous Spots of Edo Vol.2"
Compiled by Saitō Chōshū, Painted by Hasegawa Settan 1834-1836 (Tempō 5 to Tempō 7) Kaga Collection 256

Asakusa-nori, a variety of laver, was a popular product of the Edo period. It maintains the name "Asakusa" even though production shifted to Ōmori and Shinagawa during the middle of the Edo period.