Cherry Printers Petty Cash Voucher Duplicate NCR Book is ideal for your accounting requirements. At a handy size of A6 which is 148mm x 105mm so fits nicely in a petty cash tin. The book has 50 sets of duplicate (2part) NCR with a perforated top copy and a bottom copy which remains in the book for reference. With space to write voucher number, date, what the money is required for, amount of money and who has approved payment. 
Quantity Disounts Available:
Buy 5 Books for £2.79 each
Buy 10 Books for £2.49 each
Buy 20 or 30 Books for £1.99 each
Buy 40 or 50 Books for £1.79 each
Please select quantity in 1st qty box option at checkout
 
Petty cash voucher book to keep a track of money coming out of the petty cash and what it was required for.
Duplicate (2part) NCR for consistent copies
With 50 sets per book
Perforated top copy, bottom copy remains in book
Handy size of A6 which is 105mm x 148mm, so easily fits in petty cash box.
Made in the UK
NB: Colour copis may vary to image