Record collection? (7)
I believe the answer is:
archive
I believe this is a double definition.
'record' is the first definition.
(I've seen this before)
'collection?' is the second definition.
(I have seen 'Collection of documents' mean 'archive' so perhaps 'collection' could also mean 'archive')
(Other definitions for archive that I've seen before include "Collection of historical records" , "Vault" , "Collection of public records etc" , "Collection of historic or institutional documents" , "Documents store" .)