Inscription: Signed (on base, incised and intertwined): Sig. EF
Marking: (on cover): [square-rigged ship in waves, in circle, Borgila Studio]; (on base): STERLING [in rectangle]; BORGILA [in rectangle]; [three crowns in trefoil, Swedish control mark]; S [in hexagon, state control mark for silver since 1912]; [head of St. Eric, in oval]; G 8 [in rectangle, Swedish control mark]
the manufacturer, Stockholm (until 1934; sold to MMA)
Gustaf Herman Fabian Upmark. Guld-och silversmeder i Sverige, 1520–1850. Stockholm, 1925, pp. 2–3, 15.
Marc Rosenberg. Der goldschmiede Merkzeichen. Vol. 4, Ausland und Byzanz. Frankfurt am Main, 1928, p. 470, no. 8170 (state control mark).
John Goldsmith Phillips. "New Accessions of Contemporary French and Swedish Decorative Arts." Bulletin of the Metropolitan Museum of Art 30 (January 1935), p. 4.