Index cards were gradually loading a shoe box with their compact weight.
Pnin (1957)
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The manuscript, mostly a Fair Copy, from which the present text has been faithfully printed, consists of eighty medium-sized index cards, on each of which Shade reserved the pink upper line for headings (canto number, date) and used the fourteen light-blue lines for writing out with a fine nib in a minute, tidy, remarkably clear hand, the text of this poem, skipping a line to indicate double space, and always using a fresh card to begin a new canto.
Pale Fire (1962) [From Charles Kinbote's foreword to his edition of John Shade's poem.]
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After a leisurely lunch, prepared by the German cook who came with the house, I would spend another four-hour span in a lawn chair, among the roses and mockingbirds, using lined index cards and a Blackwing pencil, for copying and recopying, rubbing out and writing anew, the scenes I had imagined in the morning.
Foreword to Lolita: A Screenplay (1973)
The photographs of Nabokov's research materials for Lolita and of the author at work with index cards are by Carl Mydans, taken in September 1958 in Ithaca, New York. I found them in the Life photo archive, here and here.
Related posts
Nabokov’s unfinished (Review of The Original of Laura)
Raymond Carver's index cards
Writing and index cards