SWITZERLAND OFFICIALS COLLECTION.1918/50.  mostly mint on Lindner hingeless pages and including (mint unless otherwise noted) OA1-18 (some NH), OA19-27 NH, O1-36, O37-47 NH, 1O1, 1O3 used (Mikulski cert), 1O7-8, 1O9-16, generally fresh and fine to very fine