....the tcharki (?) I have seen were quite small, like demi-tasse cups or shot glasses, almost but fuller bodied, one or two-- I don't recall right now, had antique coins for handles....Gold roubles from Catherine the Gts reign. Enamelled en plein over guilloche they were beautiful, and I suppose afforded by many customers of Faberge before 1917. Though unfortunately, today , not I.
Copriolite... now there's a drinking vessel for you!!
Good luck with your investigations,
Domovoii