Columbia subject headings:
Harvard subject headings:
Cameos--Germany--Cologne.
Christian art and symbolism--Germany--Cologne--Medieval, 500-1500.
Christian shrines--Germany--Cologne.
Gems--Germany--Cologne.
Gold boxes--Germany--Cologne.
Goldwork--Germany--Cologne.
Kölner Dom.
Reliquaries--Germany--Cologne.
Princeton subject headings:
Christian art and symbolism--Medieval, 500-1500--Germany--Cologne.
Christian shrines--Germany--Cologne.
Gold boxes--Germany--Cologne.
Kölner Dom.
Reliquaries--Germany--Cologne.