The first, signed Edmund Parsons, dates from 1913 and reads: "To buy this book I sold a sleeved pullover". The second note is dated 1944 and unsigned: "Bought Verona Autumn 1944 when being deported into Germany".
Hugues' blog post ends (my translation):
A friend said to me recently: "When things are not going well, it does a world of good to immerse oneself in a book." He is right, whether we struggle, make unreasonable sacrifices, or take distant journeys [in order to acquire them], books are travelling companions that bring us moments of happiness and comfort which are often unsurpassed.You'd need to give up more than your sweater for a copy today: the 1558 edition is selling for $943.50. The 1552 edition has been scanned and is available on Archive.org.