Pendant ‘Birch sap’. Agate, egg tempera, varnish, a drop of Czech glass Pendant ‘Birch sap’. Agate, egg tempera, varnish, a drop of Czech glass Related Posts:Birch bark art by Vadim KomarovPainting on birch bark by Kristina PetrovaMurano glass artKaleidoscopic Stained Glass CarGlass art by Elena NechayevaEngraving on glass by Kevin Gordon