This photo of a ravenous Clas Pehrsson, blessed with so much success that he is reduced to eating his own recorders (and they say that we English are mad!) is inexpertly scanned from BIS LP-48 mentioned below, the accredited photographer being Bo Johansson.
I especially admire for his versions of Capriol Suite by Peter Warlock, The Leaves Be Green by William Byrd and Concerto D-Moll Nr. 6 by Joseph Bodin de Boismortier. For me they were the definitive renderings when taking these works into the Schwanewede Recorder Consort and Blue Monday repertoires.
The following is quoted from the sleeve of BIS-LP 8 Stereo "Clas Pehrsson" printed in 1975
CLAS PEHRSSON, born in Stockholm in 1942, devoted himself to University studies in educational theory and music and was active both as a violinist and violist before turning in the mid 1960's, primarily to the recorder. On this, his principal instrument, he is self-taught, but has studied the performance of early music with Ferdinand Conrad, Hans-Martin Linde and Nicolaus Harnoncourt.
He pursues an extremely wide range of musical activities both as a soloist and as a chamber musician, this latter primarily with the trio MUSICA INTIMA and the recorder quintet MUSICA DOLCE which he founded in 1969 and which has led ever since.
He has been principal teacher of the recorder at the state college of Music in Stockholm since 1965 and his educational activities include school concerts and other courses, e.g. a very successful course in playing an instrument for both radio and TV with the guitarist Ulf G. Ahslund.

I have four recordings by Clas Pehrsson in my possession and they include:

• BIS LP-8 Stereo: Clas Pehrsson
  (1) Concerto F-Dur für Altblockflöte für Streichorchester von Georg Philipp Telemann
  (2) Concerto A-Moll für Altblockflöte, 2 Violinen) und Basso continuo von Alessandro Scarlatti
  (3) Concerto a 8 für 4 Altblockflöten und Streichorchester von Johann David Heinichen
  (4) Concerto Nr. 4 8 für 5 Altblockflöten ohne Bass von Joseph Bodin de Boismortier
  (5) Concerto B-Dur für 2 Altblockflöten und Streichorchester von Georg Philipp Telemann
• BIS LP-48 Stereo: Clas Pehrsson, Bengt Ericson, Anders Öhrwall
  (1) Sonata Prima (Sopranblockflöte) von Giovanni Fontana
  (2) Sonata C Minor (Altblockflöte) von Francesco Barsanti
  (3) Sonata E Minor (Sopranblockflöte) von Georg Philipp Telemann
  (4) Comagain (Sopranblockflöte) von Jacob van Eyck
  (5) Fantasia en echo (Sopranblockflöte) von Jacob van Eyck
  (6) Amarilli, mia bella (Alt-, Tenor-, Bassblockflöten von Hans-Martin Linde
  (7) Fragmente (Tenorblockflöte) von Makoto Shinohara
• BIS LP-57 Stereo: Musica Dolce
  (1) Concerto D-Moll Nr. 6 (5 Tenorblockflöten) von Joseph Bodin de Boismortier
  (2) Cantus XXVIII Canzona a 5 voices Super "O Nachbar Roland" (2 Sopran-, Alt-, Tenor-, Kontrabassblockflöten) von Samuel Scheidt
  (3) Browning Fantasy (Tenor-, Bass-, 2 Kontrabass, Großbassblockflöten) von Clement Woodcocke
  (4) The Leaves Be Green (Sopran-, 2 Alt-, Tenor-, Bassblockflöten) von William Byrd
  (5) Three Epigrams (2 Alt-, Tenor-, Bassblockflöten) von Peter Lyne
  (6) Liten svit för 2 blockflöjter (Sopran-, Altblockflöten von Moses Pergament
  (7) Trio von "Plöner Musiktag" (Sopran-, Alt-, Tenorblockflöten von Paul Hindemith
  (8) Capriol Suite (Sopran-, 2 Alt-, 2 Tenor-, Bassblockflöten) von Peter Warlock
• BIS LP-210 Stereo: Recorder Concerti, Clas Pehrsson, The Drottingholm Baroque Ensemble
  (1) Concerto re maggiore Op. 10:3 (Il Cardellino) per flauto piccolo archi e continuo by Antonio Vivaldi
  (2) Concerto fa maggiore per flauto soprano, archi e continuo by Giuseppe Sammartini
  (3) Suite a-moll für Altblockflöte, Streicher und B.c. von Georg Philipp Telemann