1903 and late 20th century
The base stamped with fourteen flame Rookwood mark over Roman numerals, further stamped: S1644 / signed in Japanese for artist Kataro Shirayamadani; the lamp shade bears Tiffany Studios metal tag
The bulbous base with raised jonquils atop three applied feet fixed with an electrified oil lamp standard, together with a Tiffany Studios-style acorn lampshade
The base: 9.5" H x 9" Dia.; the shade: 5.75" H x 14" Dia.; overall: 23.25" H x 14" Dia.

Overall good condition. A small chip to one foot. The shade with approximately ten cracked panels. Approximately ten panels with glue residue at the leaded seams. Wiring should be checked by a qualified electrician prior to use.