Item No. ad292 Arabic, coffee cup, Rengas (ring).
Blowing decorative ring was in production from 1955 to 1960. B-model was designed by Kaj Franck, who was in production from 1951 to 1973. Hard Earthenware. Height 6 cm, diameter 7.2 cm. Weight 0.223 kg.
https://en.wikipedia.org/wiki/Kaj_Franck..

Item No. lak539. Arabia sugar bowl, Theme. Design, Kaj Franck. Height 6 cm, diameter 8.1 cm, weight 188 g. Color, black.
https://en.wikipedia.org/wiki/Kaj_Franck..