I found this information about that plate you can read it here:
This ceramic plate is one of the Iranian examples left from the Samanid rule on the east of the Iranian plateau. During this period, many ceramic vessels were made to imitate native metal specimens, especially silver artifacts left over from the Sassanid tradition. The surface of the pot is covered with water diluted with white pottery and then glazed to create a beautiful contrast with the black patterns of Kofi. Kufic motifs in Arabic are designed to imitate black enamel, usually on silver.
This work is now housed in the Victoria and Albert Museum in England
Regarding the alternative you can find pieces close to it in Islamic stores like Khan Khali in Cairo.