Louis Icart (1888-1950) - Waltz Dream

Description
Louis Icart (1888-1950) - Waltz Dream
Dry point and etching - Hand signed - 1940

This work is an original, was paid 3.000 lire in 1990, and was sold in the most important international auctions (London and USA) for thousands of euros.
The estimate of about 250 euros is that of a reproduction.
I am asking for a review of the assessment.
Thank you.
https://www.christies.com/lotfinder/Lot/louis-icart-reve-de-valse-dream-waltz-5071991-details.aspx
https://www.bonhams.com/auctions/14022/lot/2050/
https://www.liveauctioneers.com/item/73955913_louis-icart-waltz-dream

Lot details
Artist
Louis Icart (1888-1950)
Title of artwork
Waltz Dream
Year
1940
Technique
Dry point and etching
Signature
Hand signed
Condition
In good, restored condition
Sold with frame
Yes
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