How are people encoding "n.d." or "undated" for undated material? Do you enclose it in <unitdate> tags (even though it's not a date), or make it part of the <unittitle>. I've consulted several best practice guidelines, and the list archives, but can't find anything that addresses this specifically. Thanks for any input,

Stephanie Ashley
Project Archivist
Archives of American Art
Smithsonian Institution
202-275-1672
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