Vintage bank check, NATIONAL BANK OF SOUTH DAKOTA Bear Butte Office Sturgis South Dakota, in n-mint+ unused new old stock condition. Nice clean check. Size is 2 3/4" x 6 1/4". Scans show the front, back is blank. The black border is so all the edges can be seen and is not part of the bank check itself. NOTE: All of the bank checks I have listed are guaranteed to be 100% authentic originals. They are all clean, unused and new old stock unless otherwise noted. Thank you for your purchase I appreciate it.