NK1469-70. Stamps for sale June 5, 2002.

Motives: Niels Henrik Abel, rosette
Artist: Sverre Morken
Values: NOK 5,50 - 22,00
Circulations figures: 1,5 million stamps of each value
Number per sheet: 50 stk
Print: Steel-plate printing/offset by Joh. Enschedé, Nederland
Sales prizes: First-day cover (FDC) NOK 30,50
Presentation older NOK 30,50
Collectors Album NOK 63,00

NK1469
The only existing portrait of Niels Henrik Abel is a drawing made by Johann Gørbitz in 1826. It is presently at the Department of Mathematics at the University of Oslo, and was used by Sverre Morken as model for his engraving for the stamp valued NOK 5,50. At the left one can see the lemniscate shaped as the sign for infinity. The lemniscate is an interesting curve of degree 4 that Abel studied thoroughly.
NK1470
The main element here is a computer generated guilloched rosette. At left is the title page of the collected works of Abel from 1881.

NK1483-84. Stamps for sale October 10, 2002.

Motives: Niels Henrik Abel, rosette
Artist: Sverre Morken
Valus: NOK 5,50 - 22,00
Circulations figures: 250.000 sets
Number per sheet: 50.
Print: Steel-plate printing/offset by Joh. Enschedé, Nederland
Sales prizes: First-day cover (FDC) NOK 30,50
Presentation older NOK 30,50
Collectors Album NOK 63,00
Mint letter NOK 145,00
NK1483
Same as NK 1469, but with black print superimposed by NORDIA 2002.
NK1484
Same as NK 1470, but with black print superimposed by NORDIA 2002.