I picked this up for my illegal/improper usage collection. You occasionally will run across 1st issue Playing Cards and Proprietary types (the two types that were still required to only be used for matching transactions following the legislation change of December 1862 that allowed cross-transaction type usage) used as documentaries, but it’s almost always just a single or perhaps a pair, not in large quantities on a single document.

This 1871 indenture contains a block of ten R15c and ten R18c, including a block of five, paying a total of 50 cents tax.