Fine antique small folding packet knife. 
Gold filled handle.
2 blades.
Marked "s o b" on small loop. 
Circa late 19th - early 20th century.
   Size:
About 2 3/16 in. (5.6 cm) long closed.   
  Condition: 
Very good original antique condition with very minor honest wear and charming indication of age. 
Very minor age related imperfections to gold filled finish - hardly noticeable in real life.
Unsharpened blade. 
Strong springs.
No repairs.