Riga 3:
Riga 3:
|guess= Guess date,
|guess= Guess date,
|seller= Dating given by the provider.
|seller= Dating given by the provider.
+
|provider= Dating given by provider, reliable.
|copyright= Dating from copyright note.
|copyright= Dating from copyright note.
|backco= Dating from a copyright note on the back.
|backco= Dating from a copyright note on the back.