Inline shifter?or Inland shifter?

A guy that lives about 7 houses from me,came by today with a box of Mopar parts.(He used to have a 69 Dart)In the box is a inline?or inland 4 speed shifter,new throttle cable(still in package)and a heater,radio dash piece for 69 Dart.He said to have them,he won,t be needing them.Now this shifter is a 4 speed shifter that you hit straight for shifting and has a seperate shift knob for reverse.Can someone help me here?What,s this shifter called?How,s it work?What,s it worth?I,ll take some pics. after dinner and post.Thanks a bunch!