The mediocre livelihood clique on Alexander Archipenko's oeuvre never provides space for the Horseman .I feel like Miklos Saranszki's vocation as a public figureThe Horseman.
The sculpture is made  a movie in English.I'll give you a book about the Calvary of the statue and the period after Archipenko's death. Address: The Refused Archipenko. in english.

Dhoroteum

Kiev 1887–1964 New York) Flat Torso, 1914, lifetime cast, bronze with a brownish patina on a marble base, Incised with signature and dated Archipenko 1914, height 51.5 cm (incl. base), (PP)

Lot No. 1109 #https://www.dorotheum.com/38M00520_138_39710_1_b/Bild/Alexander-Archipenko.jpg

Date: 20.05.2010, 18:00
Location: Palais Dorotheum Vienna
Exhibition: 05.05. - 20.05.2010

Photo certificate: The Archipenko Foundation, New York, 11 November 2009 Literature: Yvan Goll, Archipenko, New York 1920, ill. p. 2 (marble copy); 

The price of an Archipenko copy depends on whether 

the Archipenko Foundation gives it a certificate or not.