1. 1 Purpose and Scope of unimarc 7 2 Format Maintenance 7


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Field definition

This field contains coded data relating to three-dimensional artefacts and realia as defined by ISBD(NBM) for library and museum-based cataloguing.


Optional. Repeatable if more than one type of three-dimensional artefacts and realia material is covered by the same catalogue record.


 Indicator 1:  blank (not defined)

 Indicator 2: blank (not defined)


$a Coded Data for Three-Dimensional Artefacts and Realia

All data entered in $a is identified by character position within the subfield. The subfield is currently always nine characters in length. Conventionally the character positions are numbered 0-8. Not repeatable.

Subfield $a Fixed-length Data Elements

Name of Data Element Number of Characters Character Positions

Specific Material Designation 2 0 1

Material 6 2-7

Colour 1 8

Notes on Field Contents

If coding is not attempted for a data element, the fill character should be used in the character positions designated for the data element. If all three data elements are not coded, the field should not be present.

$a/0-1 Specific Material Designation

A two-character code is used to record the specific material designation that describes the special class of material (usually the class of physical object) to which the item belongs. The following codes are used:

aa  =  study kit

ab  =  laboratory and construction kits

ac  =  specimens (biological etc.)

ad  =  fauna

ae  =  flora

af  =  minerals

ag  =  microscope slides

ah  =  jigsaws

ai  =  tools and equipment

aj  =  arms

ak  =  containers

al  =  furniture

am  =  transport

an  =  textiles

ao  =  clothes

ap  =  games and recreation

aq  =  toys

ar  =  dolls

as  =  models

at  =  models for making

az  =  seals

1) A piece of wax or some other plastic or adhesive substance fixed on a folder letter or document, etc. in such a way that an opening cannot be effected without breaking it.

2) A piece of wax, lead etc. with an individual design stamped into it, attached to a document as a guarantee of authenticity.

ba  =  dioramas

bb  =  replicas

bc  =  sculptures

bd  =  design objects

be  =  industrial production

bf  =  machines

bg  =  coins

bh  =  medals

bi  =  jewellery

bj  =  artefacts

uu  =  unknown

vv  =  mixed

zz  =  other

$a/2-7 Material

A two-character code is used to specify the type of material the three-dimensional artefact or realia is made of. There are three two-character positions for type of material codes and they should be entered from left to right, any unused positions being filled with blanks. The following codes are used:

aa  =  terra-cotta

ab  =  wax

ac  =  clay

ad  =  majolica

ae  =  porcelain

af  =  ceramic

ag  =  plaster

ah  =  glass

ba  =  wood

ca  =  ivory

da  =  stone

db  =  precious stones

dc  =  marble

dd  =  basalt

de  =  [obsolete; where used, recode as da]

df  =  porphyry

ea  =  paper

eb  =  cardboard

fa  =  precious metals

fb  =  metal

fc  =  bronze

fd  =  copper

ga  =  synthetics

ha  =  textile

ia  =  plastic

uu  =  unknown

vv  =  mixed

zz  =  other

$a/8 Colour

A one-character code is used to specify the colour of the three-dimensional artefact and realia. The following codes are used:

a  =  one-colour, monochrome

The item is executed in one colour (monochrome).

b  =  black-and-white

The item is executed in black and white.

c  =  multicoloured

The item is executed in more than one colour.

d  =  hand coloured

The item is hand coloured.

u  =  unknown

v  =  mixed

The work or collection is a combination of one-colour, black-and-white, coloured, hand-coloured, and/or other images.

x  =  not applicable

The characteristic is not appropriate to the type of material being presented.

z  =  other

The item is other than specified above.


Field Definition

This field contains fixed length coded data generally applicable to cartographic material.


Mandatory for cartographic materials. Not repeatable.


 Indicator 1:  blank (not defined)

 Indicator 2:  blank (not defined)


$a Cartographic Material Coded Data (General)

All data is entered in subfield $a and identified by character position within the subfield. Conventionally the character positions are numbered from 0 to 12. All character positions defined must appear in the subfield. Not repeatable.

Subfield $a Fixed length Data Elements:

Name of Data Element Number of Characters Character Positions

Colour indicator 1 0

Index indicator 1 1

Narrative text indicator 1 2

Relief codes 4 3 6

Map projection 2 7 8

Prime meridian 4 9 12

Notes on Field Contents

$a/0 Colour indicator

A one-character code indicates the use of colour on the item.

a  =  one colour

b  =  multi colour

$a/1 Index indicator

A one character code indicates whether the item carries an index or name list.

a  =  index or name list on cartographic item itself

b  =  index or name list accompanying cartographic item in booklet, pamphlet, unattached cover, etc.

c  =  index or name list present but location not specified

y  =  no index or name list

$a/2 Narrative text indicator

A one character code indicates whether the item has text.

a  =  text on cartographic item itself

b  =  text accompanying cartographic item in booklet, pamphlet, unattached cover, etc.

y  =  no narrative text

$a/3-6 Relief codes

Alphabetic character codes indicate the types of relief. The list is intended to encode only the most commonly found types of relief representation. Up to four codes can be used (left justified); unused positions contain blanks, when no relief code is applied, the four character positions contain blanks. The types are recorded in the record in order of their importance to the material being described.

a  =  contours

b  =  continuous tone shaded relief

c  =  hypsometric tints – layer method

d  =  hachures

e  =  bathymetry – soundings

f  =  form lines

g  =  spot heights

h  =  other methods in colour (e.g. in the style of Imhof)

i  =  pictorially

j  =  landforms (e.g. in the style of Lobeck, Raisz, Fenneman)

k  =  bathymetry – isolines

x  =  not applicable

z  =  other methods of relief representation

$a/7-8 Map projection

A two-character code indicates the type of projection if the projection is on the item.

Azimuthal projections:  Conic projections:

aa   =  Aitoff

ca  =  Albers equal area

ab   =  gnomonic

cb  =  Bonne

ac   =  Lambert's azimuthal equal area

cc  =  Lambert's conformal conic

ad   =  orthographic

cd  =  conic (simple)

ae  =  azimuthal equidistant

ce  =  Miller's bipolar oblique conformal conic

af   =  stereographic

cf  =  De Lisle

ag  =  azimuthal equal area

cg  =  projection of the International Map

au  =  azimuthal, specific type unknown

az  =  azimuthal, other known specific type

ch  =  Tissot's conformal conic

cp  =  polyconic

cu  =  conic, specific type unknown

cz  =  conic, other known specific type

Cylindrical projections: Other projections:

ba  =  Gall da  =  armadillo

bb  =  Goode's homolographic db  =  butterfly

bc  =  Lambert's cylindrical equal area dc  =  Eckert

bd  =  Mercator dd  =  Goode's homolosine

be  =  Miller de  =  Miller's bipolar

bf  =  Mollweide df  =  Van der Griten

bg  =  sinusoidal dg  =  dimaxion

bh  =  transverse Mercator dh  =  cordiform

bi  =  Gauss di  =  polyhedric

bj  =  Plate Carree

bk  =  Cassini's

bl  =  Laborde

bm  =  Oblique Mercator

bu  =  cylindrical, specific type unknown

bz  =  cylindrical, other known specific type

uu  =  type of projection unknown xx  =  not applicable

zz  =  other known type

$a/9-12 Prime meridian

A two-character code indicates the prime meridian of the item when it is mentioned or is easily determined. Up to two prime meridians can be specified (left justified); unused positions contain blanks.

aa  =  Greenwich, United Kingdom ba  =  Madrid, Spain

(International prime meridian)  bb  =  Mexico City, Mexico

ab  =  Amsterdam, Netherlands bc  =  Moscow, Russia

ac  =  Athens, Greece bd  =  Munich, Germany

ad  =  Batavia (Djakarta) Indonesia be  =  Naples, Italy

ae  =  Berne, Switzerland bf  =  Oslo (Christiania) Norway

af  =  Bogota, Colombia bg  =  Paris, France

ag  =  Bombay, India bh  =  Peking, China

ah  =  Brussels, Belgium bi  =  Philadelphia, USA

ai  =  Cadiz, Spain bj  =  Pulkova, Russia

aj  =  Capetown, South Africa bk  =  Rio de Janeiro, Brazil

ak  =  Caracas, Venezuela bl  =  Rome, Italy

al  =  Copenhagen, Denmark bm  =  Santiago, Chile

am  =  Cordoba, Argentina bn  =  Stockholm, Sweden

an  =  Ferro, Canary Islands bo  =  Sydney, Australia

ao  =  Helsinki, Finland bp  =  Tirana, Albania

ap  =  Istanbul, Turkey bq  =  Tokyo, Japan

aq  =  Julianehaab, Greenland br  =  Washington, DC, USA

ar  =  Lisbon, Portugal

as  =  London, United Kingdom uu  =  unknown

at  =  Madras, India zz  = other

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