1969, Geneva Definitives, artist's drawing for proposed 0,05fr design by Jozef Vertel (Hungary). Acrylic on card, mounted on card, 130x169mm, 'Helvetia' inscription at left and denomination at right, unlike the issued stamps, UNIQUE. (Scott #1). (Tax Method: Regular Taxation)

1969, Geneva Definitives, artist's drawing for proposed 0,05fr design by Jozef Vertel (Hungary). Acrylic on card, mounted on card, 130x169mm, with 'Helvetia' instead of 'United Nations' at bottom, UNIQUE. (Scott #1). (Tax Method: Regular Taxation)

1969, Geneva Definitives, artist's drawing for proposed 0,05fr design by Jozef Vertel (Hungary). Acrylic on card, mounted on card, 130x169mm, similar to the issued design, but different background color and different style denomination, UNIQUE. (Scott #1). (Tax Method: Regular Taxation)

1969, Geneva Definitives, approved artist's drawing for 5c design by Jozef Vertel (Hungary). Acrylic on card, mounted on card, 130x169mm, handwritten denomination attached with tape, UNIQUE. (Scott #1). (Tax Method: Regular Taxation)

1971, imperforated horizontal strip of 3 of the issue "World Food Program" showing "Wheat and Globe", top margined, mint, NH. (Scott #17) (Tax Method: Margin System)

1971, World Food Program - 1 item: two different single die proofs in a large horizontal gutter pair (size approx. 294x164mm), with margin imprint, mint, NH. (Scott #17) (M) (Tax Method: Margin System)

1971, Druckprobe (Einzelabzug), 0,50 SFr. mehrfarbig, Ausgabe "Welternährungsprogramm” (Die Proof), auf Karton (Format132 x 137 mm), mit Druckervermerke und handschr. Druckdatum "17/11/70”. Leichte Erhaltungsmängel. (Tax Method: Margin System)

1972, Nuclear Non-Proliferation, artist's "color-sample" drawings for Geneva 40fr design, two different showing various states of the mushroom-cloud design, each a photographic collage on artboard, allover size 312x236mm, also a tracing paper overlay showing the Geneva inscriptions, UNIQUE group. (Scott #227) (M) (Tax Method: Regular Taxation)

1972, World Health Day, artist's drawing for proposed Geneva 0,80fr design by George Hamori (Australia). Acrylic and collage on artboard, 191x226mm, gray background, different from the issued design, UNIQUE. (Geneva #24). (M) (Tax Method: Regular Taxation)

1972, World Health Day, approved artist's drawing for Geneva 0,80fr design by George Hamori (Australia). Acrylic and collage on artboard, 191x226mm, also a printer's model of design, UNIQUE. (Geneva #24). (M) (Tax Method: Regular Taxation)

1973, Disarmament Decade, die proofs in a corner block of 6 for the 60c value missing black printing, therefore there are no country name, no emblem and no shades, mint, NH. (Scott #30) (Tax Method: Margin System)

1973, Disarmament Decade, corner block of 6 of the 60c value, each stamp overprinted SPECIMEN, mint, NH. (Scott #30) (Tax Method: Margin System)

1973, Disarmament Decade, corner block of 6 of the 1.10fr value, each stamp overprinted SPECIMEN, mint, NH. (Scott #31) (Tax Method: Margin System)

1973, Kampf gegen den Drogenmißbrauch, kpl. Ausgabe (1 Wert) in einem UNGEZÄHNTEN Eckrand-4er-Block (rechts oben), mit UNO-Emblem im Oberrand, postfrisch. (Tax Method: Margin System)

1973, Entwicklungshelfer-Programm der Vereinten Nationen, UNGEZÄHNTER Eckrand-4er-Block (rechts oben), mit UNO-Emblem im Seitenrand, postfrisch. (Tax Method: Margin System)

1974, ILO Headquaters, artist's "Color Model" for Geneva 0,80fr Design, acrylic and collage on artboard, allover size 263x216mm, matted, faults, UNIQUE. (Scott #38) (M) (Tax Method: Regular Taxation)

1974, imperforated complete set of the issue "Art at UN" showing "Peace Mural by Candido Portinari", mint, NH. (Scott #41/42) (Tax Method: Margin System)

1974, imperforated complete set in horizontal pairs of the issue "World Population Year" showing "Children of the World", mint, NH. (Scott #43/44) (Tax Method: Margin System)

1974, Dritte Seerechtskonferenz der Vereinten Nationen, UNGEZÄHNTE Einzelmarke der Ausgabe, postfrisch. (Tax Method: Margin System)

1975, imperforated complete set of the issue "Namibia-United Nations direct responsibility" showing "Hand Reaching up over Map of Africa and Namibia", mint, NH. (Scott #53/54) (Tax Method: Margin System)

1976, 30 Jahre Weltverband der Gesellschaften für die Vereinten Nationen (WFUNA), kpl. Ausgabe (1 Wert) in einer UNGEZÄHNTEN Einzelmarke, postfrisch. (Tax Method: Margin System)

1976, imperforated complete set of the issue "HABITAT" showing "Globe surrounded by houses and trees", mint, NH. (Scott #59/60) (Tax Method: Margin System)

1977, Weltorganisation für geistiges Eigentum (WIPO), UNGEZÄHNTE Einzelmarke für die Ausgabe, postfrisch. (Tax Method: Margin System)

1977, Sicherheitsrat der Vereinten Nationen 0.80 Fr. und 1.10 Fr. als UNGEZÄHNTE PROBEDRUCKE im Blockformat auf gummierten Papier am Oberrand in Präsentationsmappe geklebt mit offiziellen Freigabevermerk 'Die Proof Approved / U.N. Postal Adminitration' (T) (Tax Method: Margin System)

1977, 20 Jahre Internationale Atomenergie-Organisation (IAEA), kpl. Satz (2 Werte) in UNGEZÄHNTEN Einzelmarken, postfrisch. (Tax Method: Margin System)