Columbia subject headings:
Harvard subject headings:
Art, Medieval--Themes, motives
Christian art and symbolism--Italy--Lucca.
Christian art and symbolism--Italy--Pisa.
Church decoration and ornament--Italy--Lucca.
Church decoration and ornament--Italy--Pisa.
Graffiti--Italy--Lucca.
Graffiti--Italy--Pisa.
Ships in art
Princeton subject headings:
Art, Medieval--Themes, motives.
Christian art and symbolism--Italy--Lucca.
Christian art and symbolism--Italy--Pisa.
Church decoration and ornament--Italy--Lucca.
Church decoration and ornament--Italy--Pisa.
Graffiti--Italy--Lucca.
Graffiti--Italy--Pisa.
Ships in art.