a russian icon of saints peter and paul, 19th century

the gilded silver oklad with a border of strapwork and with enameled halos, 1892, apparently by A. Smirnov, Moscow, but unclear,  the reverse with a presentation plaque inscribed in Cyrillic, "To Our Most Respected Master, Pavel Michaelovich, from his Employees on the Occasion of the 25th Anniversary of the Trade, 1867-1892"