national shrine of minor grade
Historical term from the pre-war shrine ranking system (近代社格制度). Refers to a minor-grade shrine under direct state support (官幣).
Kanpei-shōsha referred to small shrines that received offerings from the state under the pre-war shrine ranking system.
A higher rank: major-grade national shrine under direct state support.
A minor-grade national shrine supported by the national treasury, not directly by the emperor.
Compound of 官幣 (kanpei, 'state offerings') + 小社 (shōsha, 'small shrine'). A term from the Meiji-era shrine ranking system.