541 Subfield $d - Date of acquisition:

Subfield $d contains the date of acquisition.

Examples:

541 ##$3Photonegatives$cPurchased;$d1979.

541 ##$3Ref print$cCopyright deposit--RNR;$dReceived: 10/30/82;$aCopyright Collection.

541 ##$cPurchase;$d1951-1968.