Some listings in France use this for condition:
Qualité NEUF ** : Stamp Mint,no Hinge trace,Original Gum
Qualité NEUF * : Stamp Mint,Hinge Trace,original Gum
Qualité NEUF (*) : Stamp Mint,No gum
Qualité Oblitéré TB :(used) First choice,no defects
Qualité Oblitéré B : (Used) Stamp with a good aspect,small defects
Qualité Oblitéré ST : (used)Stamp with defects,worthy of being in a collection
For instance an example;a stamp is Mint with original gum you will find the condition as follows:
Neuf*/ST meaning that the stamp has defects(because TB,B,ST will indicate the real condition.
The example from a listing by a known Delcampe seller:

Another example: Neuf(*)/TB ; that means Mint no gum & first choice no defects:
