How Do You Know Which Stamps To Send Of To Get Certs For

>> I have a question about certification -- what happens with stamps that the expertizers judge to be borderline? That is, they can't judge one way or the other.

I imagine this must happen quite a lot with such things as German inflation era cancellations -- a lot of those cancels would be very easy to forge. Or do they only expertize those with clear cds?


PF, and probably the other USA expertizers, may decline to provide an opinion. I don't know what the procedure is in Germany.

For a German cancellation to be expertized all of the essential information needs to be visible. That information includes the town, date and code letters (if any - they denote the post office location or canceler number, or similar).

A stamp with only wavy lines from a machine cancel is essentially not expertizable. The same goes for a small arc of ink in the corner of the stamp.