Zomerzegel 1970
With the Zomerzegel of 1970, a yearly edition of summer-stamps, the Netherlands surprised philatelists worldwide:
For the first time computer graphics were presented as stamp-motifs.
Ootje (R. D. E.) Oxenaar
Ootje Oxenaar designed the stamps and developed the five computer graphics in cooperation with the Technical University Eindhoven.
Back then Oxenaar also worked on an innovative design for new Dutch banknotes.
In cooperation with the TU Eindhoven he used thin, computer generated lines in the background of the main motif to make it unforgeable.
These lines were calculated by a mainframe computer and were (in these days) practically not imitable. The mainframe used at TU Eindhoven was CORA I.
The design process brought up the idea of choosing computer graphics as motifs for a stamp edition.
See images of the dutch banknotes and other work by R. D. E. Oxenaar on the website of the
Alliance Graphique Internationale.
»Zomerzegel en Computer« Summer-Stamps and Computer
On April 7, 1970 the computer graphic stamps were released. The PTT also distributed five first day postcards »Zomerzegel en Computer«:
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Zomerzegel 1970: 12 + 8
R. D. E. Oxenaar: isometrische projectie van circel naar vierkant (isometric projection from circle to square)
First Day Postcard, 1970
black intaglio overprinting after plotter drawing
on yellow printed paper
idea and program: R. D. E. Oxenaar with TH Eindhoven
generated: 1970, TH Eindhoven, The Netherlands
Check if available here.
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Zomerzegel 1970: 15 + 10
R. D. E. Oxenaar: evenwijdige vlakken in en kubus (parallel planes in a cube)
First Day Postcard, 1970
black intaglio overprinting after plotter drawing
on silver-colored printed paper
idea and program: R. D. E. Oxenaar, centrum voor cubische constructies in cooperation with TH Eindhoven
generated: 1970, TH Eindhoven, The Netherlands
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Zomerzegel 1970: 20 + 10
R. D. E. Oxenaar: twee schaalverdelingen (two scales)
First Day Postcard, 1970
black intaglio overprinting after plotter drawing
on white paper
idea and program: R. D. E. Oxenaar in cooperation with TH Eindhoven
generated: 1970, TH Eindhoven, The Netherlands
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Zomerzegel 1970: 25 + 10
R. D. E. Oxenaar: overgangsfasen van concentrische cirkels met oplopende diameter (transitional period of concentric circles with gradient diameter)
First Day Postcard, 1970
black intaglio overprinting after plotter drawing
on blue printed paper
idea and program: R. D. E. Oxenaar in cooperation with TH Eindhoven
generated: 1970, TH Eindhoven, The Netherlands
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Zomerzegel 1970: 45 + 20
R. D. E. Oxenaar: vier spiralen (four spirals)
First Day Postcard, 1970
white intaglio overprinting after plotter drawing
on silver-colored printed paper
idea and program: R. D. E. Oxenaar in cooperation with TH Eindhoven
generated: 1970, TH Eindhoven, The Netherlands
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Artistīs Profile
R. D. E. (Ootje) Oxenaar (1929-2017)
Robert Deodaat Emile Oxenaar, born 1929 in Den Haag, The Netherlands, graphic designer, studied art in The Hague,
worked as professor for industrial design at the TU Delft and for the department of aesthetic design for the PTT (post administration of the Netherlands) between 1970 and 1996.
Oxenaar emigrated to the U.S. in 2000 where he taught at the Rhode Island School of Design (RISD), Providence.
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