Linn Kans

I have a pair of Linn Kans with serial number 03019.

In addition I am thinking about 2 more pair. Their serial numbers are 044563 and 639784. I believe all of these have a sequential serial number.    

Would you please tell me what year these were made? And, how much these would sell for?

Name on Audiogon is Woodman.

Thank you in advance,                                                                                          Woody