Switzerland. ⊙. Quality used collection with several hundreds incl. significant pmk and shade studies in the 19th and early 20th century, as well as extensive perf types on the Standing Helvetias with many good stamps present. Beginning in 1854 with a superb pair of 5 rp strubeli, as well as superb cds, 20 rp orange, then a virtually complete page of the 1862 Sitting Helvetias to 1 fr incl. key value 3 fr and 60 fr and some very good shades on intermediate values, as well as further page studies of these – on this issue alone there are about 100 examples, neatly displayed. Then the numeral issues 1882 white and silk papers, again with a study of varieties incl. much unlisted and the best being the 1882/04 Standings with so much here that will benefit from a Zumstein. The 20th century again with much specialization and page after page of completion with material outside of the box, then leading on to extensive Pro Patrias, followed by a good range of se-tenants, interpanneau pairs, Pro Juventutes from 1915 onwards, air mails, officials and offices incl. many key stamps, postage dues 1875/82 and 1887/96 to 500 both complete etc, followed by much unlisted. An excellent collection that should be viewed page for page to be fully appreciated.