"Natanael Cassén"
Signed A. Fridell and dated Sthlm 1917. Canvas 61.5 x 46.5 cm.
Sveriges Allmänna Konstförening, Västra trädgårdsgatan 10, Stockholm, Sweden, "Eric Detthow-Axel Fridell-David Tägtström", Feb 1918.
Liljevalchs Konsthall, Stockholm, Sweden, "Namnlösa porträtt", exhibition arranged in cooperation with Svenska Dagbladet, 15-30 Jan 1938, no. 23.
Karl Haskel, "Axel Fridell. Bilder 2", 1989, mentioned and illustrated p. 138 as well as illustrated full page, p. 139.
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