In all the references I found: the database, the Spode Online Exhibition, Copeland's Spode Willow pattern and other designs after the Chinese, Steven Smith's Spode & Copeland, and Whiter's SPODE, the pattern is identified as #2886 and known as "Bang Up", but those references all have a double line drawing of an outline of a flower as an inner border. Your impressed mark is dated c. 1822-33. The pattern often has the printed mark "Spode Stone China" that could date as early as 1812-33. Perhaps the printed mark appears on the examples with the added double line inner border.
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