Michael Boehm

Magnetic metallic safeguarding thread with negative writing

Magnetischer, metallischer Sicherheitsfaden mit Negativschrift

Paper of value and a method of producing it

Magnetic metallic safeguarding thread with negative writing and a method of making same

Security document, which is embedded in the visual security element and with machine to be checked by means of labels

Wertpapier und Verfahren zu seiner Herstellung. Value paper and methods for its preparation.

Value paper and methods for its preparation.

Ett papper av vaerde samt foerfarande foer dess framstaellning.

Wertpapier und verfahren zu seiner herstellung Investment and process for its preparation

Magnetischer, metallischer sicherheitsfaden mit negativschrift Magnetic, metallic security thread with negative writing