This lovely set is in very good condition.
The pattern is called Cobalt Net Tulip and is by Famous Russian Porcelain company Lomonosov.
There is no damage to the set. No chips or cracks. There is light wear to the gold to the rim of the cup only.
The back stamp is in red for a factory first and is the first back stamp used from 1936. This set was made for the Russian market and not for export. If made for export it would have had USSR to the underside.
The cup is 58mm tall x 74mm across, and the saucer is 115mm across.