Book: Emmerson, Robin. 1992 British Teapots & Tea Drinking 1700-1850.
• Spode teapot of much the same body, handle, and spout shape as that in this set, but with blue and gilt landscape reserves: col. pl. 19, no.415 & p. 251, 1810-15Book: Wilkinson, Vega. 2002 Spode-Copeland-Spode: The Works and its People 1770- 1970.
• Dates the "Spode" mark to 1800- 20 on p.280, and the pattern number "2245" to 1817 on p. 282Book: Drakard, David & Holdway, Paul. 2002 Spode Transfer Printed Ware 1784-1833.
• Same painted red enamel "Spode" mark (no. 23) with different number: p. 321, dates 1803-33, red is mroe common than purple, black brown or gold.