Beginning of the 20th century, where you can find information
 

The Internet could not find data on the profitability of investments in works of art in the late 19th and early 20th centuries.
Tell me, please, where you can find such information.

Yes, that's the same here:


http://artinvestment.ru/indices/arti...tings_faq.html

As I understand, the author of the question was referring to the yield of a century ago.

Apparently, the article says.

Here write and we'll read-discuss.
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And an interesting topic, by the way.