Rock Formations: 60c, Rock formation, trees
Technical Details
Issue date:   31 March 1993
Designers: Mirto Nicolaas
Size of picture:  22 x 33 mm
Size of stamp:   25 x 36 mm
Perforation:      12.75 : 14
Offset paper without watermark
Synthetic gum
Sheets of 5 x 10 = 50 stamps
Colours: Black, yellow, magenta, cyan, red, blue
Printing technique:  offset
Printer:   Joh. Enschede en Zonen, Haarlem