Three small reverse glass or verre églomisé pictures 19th century and earlier

Three small reverse glass or verre églomisé pictures 19th century and earlier, one depicting the Ascension, one a portrait of a gentleman in Tudor dress, one a small black silhouette portrait within a green panel on a gold ground, and a souvenir thermometer picture of Freundschafts in Carlsbad, decorated in glass frit and mosaic with figures beneath tall trees, 21cm max. (4)

Provenance: from a private collection in Sussex.