MARC21-007: Secondary support material of projected graphic
cardboard
Cardboard mount.
c
Slides and transparencies cataloged from data sheets are assumed to have cardboard mounts unless otherwise known.
glass
Glass mount that usually covers the film base but should not be the primary support for the film emulsion.
d
metal
Metal.
h
Usually used to frame larger projected graphics which need better support.
metal and glass
Metal portion is usually a frame that holds one or two pieces of glass to support the film base. Glass should not be the primary support for the film emulsion.
j
mixed collection
Secondary support material varies for different items in a collection.
m
Typically this is used for groups of projected graphics on various secondary support materials.
no secondary support
No secondary support.
#
Includes filmstrips.
other
Secondary support material other than cardboard, glass, synthetic, metal, metal and glass, synthetic and glass, mixed collection.
z
synthetic
Synthetic material.
e
E.g. plastics, vinyl, etc.
synthetic and glass
Synthetic material is usually used as a frame to hold one or two pieces of glass to support the film base. Glass should not be the primary support for the film emulsion.
k
E.g. plastics, vinyl, etc.
unknown
Secondary support material is not known.
u
Published