Technique:

intaglio printing

Security Element:

rainbow colouring

Description:

rainbow colouring: olive-red-olive, violet-pink-violet, turquoise-cyan-turquoise; additional printing technique: intaglio

Security Element:

latent image

Technique:

intaglio printing

Description:

other optical effect: metallic pigment

Security Element:

guilloches / fine line patterns

Technique:

intaglio printing