Jodi and all---
If the very low intensity of physical processing either can't identify record series, or at least can't disentangle them meaningfully, why not simply code every resulting <c0x> as @LEVEL=file? Then the coding is intellectually sound, and it reflects the circumstance that no useful hierarchy presents itself in their arrangement.
Just one way to skin the cat,
Dennis Meissner, Archival Processing Manager
Minnesota Historical Society <www.mnhs.org>
Voice: 651.296.2496 | Fax: 651.296.9961
eMail: [log in to unmask]