Knowledge / Expertisations / Expert´s Marks Systematic

Expert´s Marks Systematic: The introduction of a test mark systematic with precise determination of the location, position and orientation was carried out in order to exclude any subsequent falsification of the expert´s mark

Positions

Genuine Postage Stamp Without Separation Without Overprint

Genuine Postage Stamp With Genuine Rouletting Without Overprint

mint never hinged: lying on the left

used: lying on the right

mint never hinged: diagonally from bottom left to top right

used: diagonally from top left to bottom right

Genuine Postage Stamp
With Genuine Perforation Without Overprint

Genuine Postage Stamp Without Separation With Genuine Overprint

mint never hinged: standing on the left from top to bottom

used: standing on the right from top to bottom

mint never hinged: lying inverted on the left

used: lying inverted on the right

Genuine Postage Stamp With Genuine Rouletting And Overprint

Genuine Postage Stamp With Genuine Perforation And Overprint

mint never hinged: diagonally inverted from bottom left to top right

used: diagonally inverted from top left to bottom right

mint never hinged: standing on the left from bottom to top

used: standing on the right from bottom to top

Official Reprint

lying in the middle

Quality

flawless postage stamp with expert´s mark on the lower edge

for damaged postage stamps, repaired or damaged, the expert´s mark will be affixed higher depending on the degree of defect

If there is a postage stamp in different color shades the most expensive one could be signed twice

Fakes

forgery with expert´s mark in the middle

genuine postage stamp with fake overprint with expert´s mark in the middle

genuine postage stamp with fake cancellation with expert´s mark in the middle

genuine postage stamp with fake perforation with expert´s mark in the middle