The letter was sent from Yoshisada NAKANOIN (the provincial governor of Echizen Province) to Kuro Yorikazu TOKUE in A.D. 1346 (or the second year of "Hakuroku," which was used as the name of the era in Hokuriku Chotei), and the letter is now called "Tokue Monjo" (the Tokue Family's Documents), or "Hakuroku ninen Yukisada Hoshittatsujo" (The Commendation of the Emperor, conveyed by Yukisada in the second year of Hakuroku).
1346年に私年号「白鹿2年」を用いて越前国司中院良定から得江九郎頼員へ当てられたものである。（得江文書・白鹿二年行貞奉執達状）。