Detailed profile of this breed: origin, year of creation, recognised varieties and official approvals.
Awaiting confirmation of the exact breed name. It seems you refer to the Volga Tumbler (French: Culbutant de la Volga). Please confirm the exact designation (in French or English) to ensure accurate, sourced details before I provide the three sections: Summary, Detailed Origin, and Detailed Description in English (and translations in the other languages).