Other libraries and archives use different systems, like Aleph, Voyager, Marquies, etc. The National Archives are the largest official archives in Hungary. Since its formation in 1867 it has had a map collection, however, never as a separate, independent department. In addition an inestimable amount of maps, plans and designs are hidden among the documents and records. All holdings are furnished with stock registers and with indexes of place names.
Architectural designs have author indexes too.
Approximately half of the maps have been prepared for computer processing. They attended several trade and archival conferences in Hungary. There were no exhibitions and publications compiled or edited in this period. Some 220 pieces were restored. The Archives are supplied with II F international academic X.25.