Isaac GRÜNEWALD
1889–1946, Sweden/Norway
Also known as: IG
Signatures & monograms
43 signatures and monograms by Isaac Grünewald on ceramic, glass, drawing, graphic, print, painting and watercolour. Compare authentic and documented counterfeit examples to study signature characteristics.
Signature proven counterfeit
Oil on panel, still life with amaryllis, signed "Grünewald", ca 50x47 cm. The painting was submitted to a major auction house in Stockholm for sale. The painting was never cataloged. The auction house was suspicious as to the authenticity and contacted the police for further investigation. The owner (submitter) has owned the painting for many years and are not suspected of any crime. How the painting was produced or who signed it is not known. The investigation has determined that the painting is not an original work of Isaac Grünewald, nor signed by him.
Signature proven counterfeit
Signature proven counterfeit
Oil on canvas, 45x37 cm, motive still life with fruit, painted wood frame. Signed Grünewald in the lower right corner. Estimate 14.000 SEK for sale in December 2003. (Loan amount 18.600 SEK). The painting, along with eight other works of art, has been pledged at the ”Svensk Pantbelåning AB” in Gothenburg, Sweden. They were later sent to an auction house in Stockholm for sale. All the artwork in the was fakes. They have been pledged by Mr. J. W. who has been the subject of investigation regarding aggravated embezzlement and convicted of this. A painting that was kept at the Svensk Pantbelåning AB for Mr. J.W. has been submitted to an auction house in Stockholm. Although this painting has proven to be counterfeit. It is signed Toulouse Lautrec
Signature proven counterfeit
Oil on canvas. 69,5 X99,2 cm. Motif with women in positions of repose outdoors, signed "Grünewald" dated Paris 17. The painting is badly done, too fussy and cluttered to be typical of Isaac Grünewald. The signature is not typical of Isaac. One can not find that Isaac Grünewald visited Paris 1917. That summer, when Europe was at war, he was in Denmark and returned to Paris in 1920.
Signature considered genuine
Signature considered genuine
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Signature considered genuine
Signature considered genuine
Explore other artists
Discover other notable artists who were contemporaries of Isaac GRÜNEWALD. These artists worked during the same period, offering valuable insights into artistic movements, signature styles, and authentication practices. Exploring related artists makes it easier to recognize common characteristics and artistic conventions of their era.