There are just 3 items, out of over 100K, using the No Copyright - Contractual Restrictions rights statement. These can be viewed here: https://indianamemory.contentdm.oclc.org/digital/collection/ATurners/search/searchterm/%20http%3A%252F%252Frightsstatements.org%252Fvocab%252FNoC-CR%252F1.0%252F
This may not be worth the trouble, but just tracking this here in case we are able to change to NoC-US for Wikimedia compatibility, since these are all 1922 publications. I believe there is some donor agreement at play here, based on the rest of the collection, which is all in copyright, but... this isn't really how copyright works.