Columbia subject headings:
Christian art and symbolism--Switzerland--18th century--Exhibitions.
Portrait painting, Swiss--18th century--Exhibitions.
Portrait painting, Swiss--Exhibitions.
Wyrsch, Johann Melchior, 1732-1798--Exhibitions.
Harvard subject headings:
Wyrsch, Johann Melchior, 1732-1798--Exhibitions.
Princeton subject headings:
Wyrsch, Johann Melchior, 1732-1798--Exhibitions.