@Dumbarton Oaks

Collection MS.BZ.009 - Corpus for Wall Mosaics in the North Adriatic Area, ca. 1974-1990s

Identity area

Reference code



Corpus for Wall Mosaics in the North Adriatic Area, ca. 1974-1990s


  • 1974-1990s (Creation)

Level of description


Extent and medium

19 boxes of correspondence, research materials, notes, photographs, and color transparencies

Context area

Name of creator

Andreescu, Irina (active late 20th century)

Biographical history

Scholar involved in the fieldwork campaign for the Corpus of Middle Byzantine Wall Mosaics in the North Adriatic area, ca. 1970s. Dumbarton Oaks Junior Fellow, 1971-1973.

Name of creator

Demus, Otto (1902-1990)

Biographical history

Born in Austria, Demus was a Byzantine art historian and a scholar of the Church of San Marco in Venice, Italy. He received his doctorate from the University of Vienna. At Dumbarton Oaks, he served as a Visiting Scholar in 1949, 1953, 1958, 1960, 1965, 1973–1979, and 1981. In 1973, Dumbarton Oaks provided support for Demus for his research project at San Marco, which resulted in the two-volume publication Mosaics of San Marco in Venice (Chicago: University of Chicago Press, 1984).

Name of creator

Ritter, Ekkehard (active late 20th century)

Biographical history

Austrian photographer and founder of the firm Foto Ritter in Vienna. Ritter created the color transparencies and slides for the North Adriatic project co-directed by Irina Andreescu and Otto Demus (1975-1979).

Archival history

Immediate source of acquisition or transfer

The department first received materials for this collection between 1975-1979 from Dr. Irina Andreescu.

Content and structure area

Scope and content

This collection includes comprehensive research and conservation materials of mosaics in the North Adriatic area, a project co-sponsored by Dumbarton Oaks. Sites include Italy: Venice, San Marco; Torcello, Cathedral; Trieste, San Giusto; Murano, San Cipriano/San Donato; Ravenna, Basilica Ursiana; Greece: monasteries of Daphni and Hosios Loukas, different churches in Arta, Kastoria, and Thessaloniki; and Turkey: Istanbul, Hagia Sophia.

Dr. Irina Andreescu acted as fieldwork director and directed the photographic campaign that dates from 1975 through 1979. Photographer Ekkehard Ritter made black and white photographs, color transparencies and slides. Dr. Andreescu also made some of the 35 mm slides. Dr. Andreescu's research materials include bibliographical references, notes, sketches, and tracings.

Appraisal, destruction and scheduling


System of arrangement

Conditions of access and use area

Conditions governing access

This collection is unprocessed. For more information or for access to the collection, please consult ICFA staff.

Conditions governing reproduction

Duplication of materials in the collection may be governed by copyright and other restrictions.

Language of material

Script of material

Language and script notes

Physical characteristics and technical requirements

Finding aids

An unpublished preliminary inventory is available for consultation in the Image Collections and Fieldwork Archives.

Allied materials area

Existence and location of originals

Related photographs may be found in the Image Collections, National Gallery of Art, Washington, D.C (http://www.nga.gov/resources/dlidesc.shtm).

Existence and location of copies

Digital copies of related images of the Church of San Marco in Venice, Italy may be accessed through Harvard University's Visual Information Access (VIA) system.

Related units of description

Otto Demus and the San Marco Mosaics Project Papers, 1954–1970, Dumbarton Oaks Archives, Washington, D.C. http://www.doaks.org/library-archives/dumbarton-oaks-archives/historical-papers/otto-demus-and-the-san-marco-mosaics-project-papers.

Notes area

Access points

Name access points

Description control area

Description identifier


Institution identifier


Rules and/or conventions used

Describing Archives: A Content Standard (DACS)



Level of detail


Dates of creation revision deletion

This record was created by Shalimar White on January 27, 2014.




Rights area

Related right





Start date

End date

Rights note(s)

Preferred Citation: North Adriatic Project Fieldwork Records and Papers, 1975-1979, MS.BZ.009, Image Collections and Fieldwork Archives, Dumbarton Oaks, Trustees for Harvard University, Washington, D.C.



Related right





Start date

End date

Rights note(s)

Materials are for research and study purposes only.



Copyright status

Under copyright

Copyright status date

Copyright jurisdiction

Copyright note

Accession area