Examples from literature

• But, you see, most of my counterfoils are blank! 
• He took an opportunity, when the young man's back was turned, of examining his counterfoils. 
• I do not think he believed me, even when I showed him the counterfoil of my cheque-book, and the amount of a remittance I sent to Robert next day. 
• Idly I picked up the cheque-book—and absently fingered the leaves—then my eye caught a counterfoil where I had chanced to open it. 
• The young woman turned over a sheaf of counterfoils.