75/ 831 [Friesland]. Sipma, P. and Vries, O. (ed.). Oudfriesche oorkonden. Vol. I-IV. The Hague, M. Nijhoff, 1927-1977, 4 vols., orig. almost unif. cl. (3x t.e.g.), 4to.

- Vol. 1-3 sl. foxed/ htitles browned. Covers sl. soiled; vol. 1-3 spines sunned.

= Oudfriesche taal- en rechtsbronnen vol. 1-3 and 14. Rare complete set.