A security document or other device including a substrate (2), a smooth
highly reflective layer (1) applied thereto and having a reflectivity of
at least 60 gloss units, and a raised printed image (3) applied to said
reflective layer by a printing process such as the gravure process, the raised
printed image having a height of at least 10 microns and being printed using a
translucent ink having a large value of 85 to 95 as measured on an XL 211 Hazegard
haze measuring instrument, which render it substantially transparent or translucent
while causing scattering of the light reflectance and transmittance in at least
a partially specular manner. A method of producing a document is also disclosed.