1969, Austria. Original artist's painting by Prof. Otto Stefferl for the stamp "Don Giovanni, by Mozart" out from the series "Centenary of Vienna Opera House". Acrylic and collage on card. Passepartout framing (slightly creased). ISSUED DESIGN, but inscriptions in black instead of issued red. Size (netto) 252x300 mm. Some printer's notes on the reverse. UNIQUE ARTWORK. (Mi #1294) (MS) (Tax Method: Margin System) (Image)

1969, Austria. Original artist's painting by Prof. Otto Stefferl for the stamp "Magic Flute, by Mozart" [Die Zauberflöte] out from the series "Centenary of Vienna Opera House". Acrylic and collage on card. Passepartout framing. ISSUED DESIGN, but inscriptions in black instead of issued red. Size (netto) 252x300 mm. Some printer's notes on the reverse. UNIQUE ARTWORK. (Mi #1295) (MS) (Tax Method: Margin System) (Image)

1969, Austria. Original artist's painting by Prof. Otto Stefferl for the stamp "Fidelio, by Beethoven" out from the series "Centenary of Vienna Opera House". Acrylic and collage on card. Passepartout framing. ISSUED DESIGN, but inscriptions in blackinstead of issued red. Size (netto) 252x300 mm. Some printer's notes on the reverse. UNIQUE ARTWORK. (Mi #1296) (MS) (Tax Method: Margin System) (Image)

1969, Austria. Original artist's painting by Prof. Otto Stefferl for the stamp "Lohengrin, by Wagner" out from the series "Centenary of Vienna Opera House". Acrylic and collage on card. Passepartout framing (slightly creased). ISSUED DESIGN, but inscriptions in black instead of issued red. Size (netto) 252x300 mm. Some printer's notes on the reverse. UNIQUE ARTWORK. (Mi #1297) (MS) (Tax Method: Margin System) (Image)

1969, Austria. Original artist's painting by Prof. Otto Stefferl for the stamp "Don Carlos, by Verdi" out from the series "Centenary of Vienna Opera House". Acrylic and collage on card. Passepartout framing (slightly creased). ISSUED DESIGN, but inscriptions in black instead of issued red. Size (netto) 252x300 mm. Some printer's notes on the reverse. UNIQUE ARTWORK. (Mi #1298) (MS) (Tax Method: Margin System) (Image)

1969, Austria. Original artist's painting by Prof. Otto Stefferl for the stamp "Carmen, by Bizet" out from the series "Centenary of Vienna Opera House". Acrylic and collage on card. Passepartout framing. ISSUED DESIGN, but inscriptions in black instead of issued red. Size (netto) 252x300 mm. Some printer's notes on the reverse. UNIQUE ARTWORK. (Mi #1299) (MS) (Tax Method: Margin System) (Image)

1969, Austria. Original artist's painting by Prof. Otto Stefferl for the stamp "Rosencavalier, by R. Strauss" out from the series "Centenary of Vienna Opera House". Acrylic and collage on card. Passepartout framing (slightly creased). ISSUED DESIGN,but inscriptions in black instead of issued red. Size (netto) 252x300 mm. Some printer's notes on the reverse. UNIQUE ARTWORK. (Mi #1300) (MS) (Tax Method: Margin System) (Image)

1969, Austria. Original artist's painting by Prof. Otto Stefferl for the stamp "Swan Lake, by Tchaikovsky" [Schwanensee] out from the series "Centenary of Vienna Opera House". Acrylic and collage on card. Passepartout framing (slightly creased). ISSUED DESIGN, but inscriptions in black instead of issued red. Size (netto) 252x300 mm. Some printer's notes on the reverse. UNIQUE ARTWORK. (Mi #1301) (MS) (Tax Method: Margin System) (Image)

1969, Austria. Lot of 2 different original artist's paintings by Prof. Otto Stefferl for the label of the miniature sheet "Centenary of Vienna Opera House": 1 artwork for the issued version, and 1 artwork for a non-adopted version with two differentinscription overlays. Both acrylic on card, the issued version with passepartout framing. Both sizes (netto) 85x98 mm. UNIQUE ARTWORKS. (Mi label for miniature sheet #1294/1301) (M) (Tax Method: Margin System) (Image)