CONSERVATION STATUS
The evaluation of the state of conservation is the following:
1- Perfect
2 - Minor flaws
3- Significant flaws
4- Serious flaws, defective nature
and it takes the following factors into account (in order of importance):
- Integrity of the glass
- Integrity of the enamels or of other kind of decorations
- Integrity of any holder or metallic finish
RARITY
The evaluation of the rarity is the following:
1 - Common
2 - Rare
3 - Very rare
4 - Exteremely rare
and it can refer both to the author and to the kind of object in the manufacturing of the same author, or to both of the elements. The description of each object explains what the rarity refers to.