Jinnojo Kunitsugu of the school is known from a single signed , designated at the 18th session in 1969. The published sources note that this Kunitsugu does not appear in the general current since the period, but that the blade is at a glance the work of the Kunihiro group: 「この国次は江戸時代以来の一般銘鑑にはないが、一見堀川国広一門の作と鑑せられるものである」. They identify him from the Kunihiro genealogy, which records a Jinnojo Kunitsugu as the younger brother of Kunimasa and the elder brother of Kuniyasu.
The is with a , wide in , somewhat thick in and with very shallow . Its is well forged with and tends to stand slightly. The temper is wide, a shallow and large mixed in places with , deep in with well attached; the runs in with a -like turn and returns deeply. The tang carries a bold two-character signature below the peg hole.
The published sources draw out a family trait in the file marks: like his brother Kuniyasu he files the tang in the left-handed manner, 「国安も左鑢であるが、国次もそれと同様であることは流石兄弟とて争われぬものがある」. They also point to the and the as features shared with work, adding that they are by no means the result of retempering.
They judge the and splendid, but know no other surviving work by him. He is distinct from Daijo Kunitsugu, the pupil of Kunimichi, who has his own entry.