In Sraffa’s hitherto unpublished manuscripts and notes and in his annotations in books and papers, kept at Trinity College Library, Cambridge, the term “photograph” appears a couple of times in different contexts.

We do not know whether Roncaglia came across the term when he and John Eatwell took stock of Sraffa’s papers in the 1970s, before Sraffa appointed Pierangelo Garegnani as his literary executor, who with the help of Krishna Bharadwaj produced the first catalogue of Sraffa’s papers.² Here we provide, first, a reference to the term photograph in a book by Cunynghame that Sraffa had read and annotated.

Next, we turn to his preparatory notes for his 1960 book, which he began to compose as early as November 1927, but had to interrupt beginning in 1930 because of his appointment to the editorship of Ricardo’s works and correspondence by the Royal Economic Society He resumed the work on what he called “my book” in 1942, but had to interrupt it once more after the discovery of Ricardo’s correspondence with James Mill, and finally was able to put together the book from his old notes from 1955 to 1958. Finally, we consider the use of the metaphor in Sraffa’s correspondence.

2.1

More on the topic In Sraffa’s hitherto unpublished manuscripts and notes and in his annotations in books and papers, kept at Trinity College Library, Cambridge, the term “photograph” appears a couple of times in different contexts.: