My Slayer T shirt - Help!

I want some information on this shirt. I’ve had this for quite a few years now - I bought it from a 2nd hand clothing store here in Sydney (a very lucky find). I know in the early 2000s Slayer re-released a number of old shirt designs. I’ve seen one of the re-releases with the same front design of my shirt but the back just says 'Reign in Blood' while mine has 'Reign in Blood - Do you want to die - Tour 86-87 with the toured cities'. Besides the dates on the back, it has no other date line anywhere on the shirt. I want to know if my shirt is a re-release or if this is the real deal from the 80s. Either way, im a happy boy – it’s a killer fuckin’ shirt but ive always wanted to know of its year of birth.

Link: http://tshirtslayer.com/tshirt-or-longsleeve/slayer-reign-blood-tour-shi...

Thanx guys \m/