From the 1934 Chase catalog: "This attractive set consists of 6 gleaming chromium Licquer cups (No. 90047) and a small round tray with deep English blue glass bottom. The small cups 2 3/8 inches high, hold just enough and will not tip over easily".
The cobalt blue "Coaster" tray designed by Russel Wright measures 6". The cups were designed by Lurelle Guild.