An athlete, Robin Symes and the Paris market

Source: Schinoussa archive
Courtesy: Dr Christos Tsirogiannis

Dr Christos Tsirogiannis has identified a Roman marble athlete from the Robin Symes archive. The statue is due to be auctioned in Paris this Friday, 8 December 2017 (Drouot lot 292).

The history of the statue is provided:

• Royal Athena Galleries, New York:  Art of the Ancient World 4 (1995), p.75-76, lot n°236.

This does not explain why the statue appeared in the confiscated Symes archive. 

Tsirogiannis has also spotted that the statue surfaced at Sotheby's in London Sotheby's on 5th of July 1982. lot 397. Who consigned the statue to that sale? Why does the Paris description fail to mention the Sotheby's information? Would it raise questions about how it surfaced?

Where was the statue between 1982 and 1995?

I understand that the French authorities have been informed about the sale.