齿孔 7½:8.
Depth of perforation 1-1¼mm.
Effigy spacing of the stamps on the sheets (cliché settings) 1.6 x 1.6mm, so the image often extends into the perforation.
LaPe FI 3A lists 7 color variants.
The stamp sheets were manually rouletted with a so-called roulette wheel.
