KMC Chain help/advice?

[Taipan]

Picked up a silver/black KMC chain from a GT Pro series bike from around 89/90,my question is? Its stamped KMC and RJ aswell,is it any good,it looks stronger than todays versions? any ideas please lmk,thx 

[HEYWOOD BMX]

  Cant see the pics,I`ve got a hard copy (about 15 pages) of KMC BMX specific chains that I`ll scan if I can find it.
http://www.bikeguide.org/guides/drive/kmc.php

[Taipan]

 

[Gnarlyscoots]

Speak to stevencosta bro  He's the GT man on here and will tell you all you need to about them