Trade custom of pre-dating

“The Rule in general observed among Printers is, that when a Book happens not to be ready for publication before November, the date of the ensuing year is used.” — John Nichols, Literary Anecdotes (London, 1812) iii, p. 249n. According to Philip Gaskell, Nichols is describing 18th century practice. Evidently the custom dated somewhat earlier as per this example.

Narcissus Luttrell corrected the imprint date in his copy of Francis Manning’s Panegyrick (London: Printed for J. Weld, 1698.) Call number: (Ex)3598.999q vol. 64, no. 4.