[ariel]

Yes, Jovanovich was not the only painter reproducing his paintings on more than one occasion.
Perhaps, the saddest story was the life of a Russian painter A. Savrasov.
By all accounts, he was not great; rather pretty middling artist. But his oil " The rooks have arrived" became a sensation in 1871. It was so famous that the Tsar's family ordered a copy for their private collection. Neither before, nor after that did Savrasov paint anything even remotely comparable.
Unfortunately, his severe alcoholism and likely inherent mental illness destroyed him completely. He was known to paint copies of his famous painting for a glass of vodka in a span of 2-3 hours. There are many authentic copies of it of different orientation , vertical and horizontal, different sizes, - all according to the specifications of a prospective buyer.

He died on the streets.
Tragic story....