1894-1936 better ex. including Standing Helvetia 40 centimes grey perforated 9¾ x 9¼ (Zst. nr. 69B), very fine with 2021 Jean-Claude Marchand certificate (cat.v. 700); Wilhelm Tell 10 centimes red and 15 centimes violet in vertical pair, very fine with 2021 Jean-Claude Marchand certificate (cat.v. CHF 700), Helvetia with sword 40 centimes lila type II with variety mirror print on reverse (Zst. nr. 176.1.09), very fine unmounted mint with 1991 Hans Renggli certificate (cat.v. CHF 710) and Disarmament Conference Geneva 20 centimes red lilac with variety mirror print on reverse (Zst. nr. 187.1.09), very fine unmounted mint (cat.v. CHF 500) in envelope