Book: Copeland, Robert. 1999 Spode's Willow Pattern and other Designs after the Chinese.
• Same reserve (within varient border) on "SPODES/NEW STONE" and "COPELAND & GARRETT/LATE/SPODE" marked plate, with Chinese export prototype (1977.0117): pp. 98-99, nos. 20 & 21, respectively c. 1833-5 & 1795-1805Book: Copeland, Robert. 1999 Spode's Willow Pattern and other Designs after the Chinese.
• Printed blue "Spode" mark: p. 189, no. 31, 1800-20Book: Drakard, David & Holdway, Paul. 2002 Spode Transfer Printed Ware 1784-1833.
• Photo showing method of laying similar border on a plate (with Fitzhugh center): p. 39, 20th century at Spode.Book: Drakard, David & Holdway, Paul. 2002 Spode Transfer Printed Ware 1784-1833.
• Spodes New Stone plate with same center and different reserve and rim borders: p.198, no. P604, refered to as Dagger Landscape Second pattern.Book: Drakard, David & Holdway, Paul. 2002 Spode Transfer Printed Ware 1784-1833.
• Same printed mark: p. 321, marks 31-32, noting curved version as well, both found on underglaze blue printed earthenware and bone china, 1800-20.Book: Whiter, Leonard. 1978 Spode: A History of the Family, Factory and Wares from 1733 to 1833.
• Reproduction of same pattern plate: pp. 146-47, no. 6: "'DAGGER-LANDSCAPE, SECOND' Reproduction Plate 9in. From and original copper engraving at teh Spode Factory." Noting that no authentic version (like Winterthur's) was yet known. "It is among the earliest patterns by the Factory."