More baffling than a ‘ship in a bottle’ is how to fabricate interlocking ‘Olympic’ rings. Russian maker Viktor Leontiev shows how in this remarkable milling video. In one comment he says the material is “Бронза БрБ2 (бериллиевая)” or “Bronze BrB2 (beryllium)” which seems odd to me – I would have guessed brass or something similar. Either way the skill is remarkable, down to the (walnut?) display stand.
And for those as curious as me, the music track is “”Italian polka” [by] composer Sergei Rachmaninoff” performed “by Russian guitarist Victor Zinchuk.”