Star Trek

My father and I were going through some rather old things in the attic and came across some old Star Trek merchandise that I would imagine is collectible. What would be the best way to find out the value and perhaps sell it to collectors?

1) Star Fleet Technical Manual
 Franz Joseph (First Printing, November 1975)
 OriginalBlack binder with gold lettering and plastic  
  exterior sheath
 Red Interior PaperBack book TM:379260
 Excellent Condition

2) Black Original Box - Paramount Picture Sales
 Contains:
 20 Black and White Photos (ST-1 thru ST-20)
 Original Blue Sheets of episodes 2 thru 78 containing
  a synopsis, cast list for episodes (where provided by
  Paramount, Log Listing Highlights and some with
  notations on excluded portions.
 Original Cast Biographies (inc. Gene Roddenberry)

Please let me know if you have any information; I appreciate your time.



Thanks for your time