these marks or stamps were applied in the past to imitations or forgeries ...
this is no longer the case however... experts issue a statement : forgery or not. or a certificate if genuine is issued.
- Eichhorn (current)
- Pape (to 1996)
- Kruger (to 1981
- Zweiling (to 1971)
these stamps are collectable, but damage the imitations unecessarily.
this policy of stamping imitations is followed by some online auctions today... hence, the goods are damaged before sale by amateurs or non-experts ... lowering prices realised. ...
Florian Eichhorn BPP remarks ...
BPP experts group is backed by the german dealers (APHV) and stamp unions (BdPh). BPP membership is not restricted to a certain nationality. BPP started in 1958. But its predecessors group(s) already in the 1890s. BPP experts are still required to mark fakes / overprint fakes / fake cancelled genuines on reverse. Their rule says that fakes must be marked clearly and unremovable as such on reverse. "Knowing" experts do not use rubber stamp pads anymore, but take old carbon ribbon from typewriters or daisywheel printers to apply a non-oiling/fattening marking.
The "not marking anymore" refers to mint genuine stamps and any better used genuine stamp. A client may require that no genuine stamp or entire is marked anymore, but gets a cert/small size opinion only. Pencil signs on non-sensible-paper stamps of lower cat value ($60 or less) should be OK - used copies, of course.
To mark thin sensible paper genuine classics like Japans dragons with a metal handstamp on reverse, is a shame and out of discussion. And out of practice now.
The practice of marking genuine stamps on reverse started with the dealer guarantee handstamps and the experts from the 1870s followed suite. They usually employed rubber or ivory handstamps. Metal came with very small letter sizes.
BPP experts are legally liable for error, whether in the certificates or in re. marking fakes/genuines. A client can sue them for error in a cert or damage towards a stamp. Marking a genuine copy "fake" is certainly a damage. Hence BPP experts are required to have a special insurance against error of judgement.
The Swiss expert SBPP/ASEP group gives the same legal guarantee. Any other expert or expert group in the world gives "opinion only".
regards Florian
Signing of mint and any better stamps has ceased.
Cheap ones are still marked (I only use pencil).
Stamping altered or total faked stamps on reverse is still mandatory.
The used terms are
FAKE
OVERPRINT FAKE
GUM FAKE
So the practice of marking faked/altered stamps FAKE will never cease by BPP or other german experts.
AIEP members are exception.
Nowadays it is recommended to use typewriter ribbons to get oil-free colour for fake-marks.
The "not marking anymore" refers to mint genuine stamps and any better used genuine stamp. A client may require that no genuine stamp or entire is marked anymore, but gets a cert/small size opinion only. Pencil signs on non-sensible-paper stamps of lower cat value ($60 or less) should be OK - used copies, of course.
To mark thin sensible paper genuine classics like Japans dragons with a metal handstamp on reverse, is a shame and out of discussion. And out of practice now.
The practice of marking genuine stamps on reverse started with the dealer guarantee handstamps and the experts from the 1870s followed suite. They usually employed rubber or ivory handstamps. Metal came with very small letter sizes.
BPP experts are legally liable for error, whether in the certificates or in re. marking fakes/genuines. A client can sue them for error in a cert or damage towards a stamp. Marking a genuine copy "fake" is certainly a damage. Hence BPP experts are required to have a special insurance against error of judgement.
The Swiss expert SBPP/ASEP group gives the same legal guarantee. Any other expert or expert group in the world gives "opinion only".
regards Florian
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