I couldn't find a pattern either. Is there a specific pattern for this? I think you could use any table topper pattern that your fabric would look nice in.
A Samovar is an elaborate water boiler used for a continuous supply of hot water. A "Samovar quilt" is a small quilt placed under the Samovar, or perhaps on a wall behind it. They are also used on tables for a comfy, cozy feeling while enjoying a cup of tea.
Hope this helped. Good luck with your search.
Christine