FWIW, as long as it is a card from the era and not a modern creation I am always interested in it as a fan of unusual type cards and related items. I like encyclopedic compilations of data, so the more the merrier! The 'Unc" designation is just a categorizing device that card data compilers like me use to indicate that a card has been pinned down to a source that would have been categorized as such had it been known at the time. Like this M-Unc:
