if an instrument does not specify it is NON-NEGOTIABLE, the presumption is that it IS negotiable, as anything with a signature/autograph would be considered negotiable.
a card without the remainder of the matching deck is worth/use[less] unless it has an autograph or the remainder of the deck could be reassembled.
Printed copy · Anthology Volume 5, page 615Printed copy from The Tender For Law Anthology, Volume 5, page 615 (printed 13 June 2014). Added by this site; not part of the Facebook export.