Hopefully this may be of interest. Augmentation (on a chief Gules an Imperial crown proper) granted to Theodor De Smeth, of Amsterdam, from the diploma creating him a Baron of the Russian Empire. 16 [Jul.calend.] December, 1772. Re-emblazoned by E.Narbut under supervision of S.Troynitsky for a publication in the “Gerboved” heraldic magazine, St Petersburg, 1914.