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<rdf:Description rdf:about="https://archives.ucl.ac.uk:443/CalmView/record/catalog/PENROSE/3/15/1" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>O'Beirne, Thomas H</dc:title>
  <dc:description>Letters received from O'Beirne regarding puzzles and the work of M C Escher. The first letter thanks Penrose for a gift, and contains notes on the manufacture of self-replicating mechanisms. The second letter concerns Penrose visiting Scotland. The third and fourth letters concern a request by two American manufacturers to examine puzzles created by O'Beirne and Penrose with a view to licensing them.</dc:description>
  <dc:date>25 Oct 1959</dc:date>
</rdf:Description>