Slayer - Show No Mercy HELP!!!

Slayer. Everyone loves Slayer. Hardcore kids DEFINITELY love Slayer and a good 70% of all metalcore bands lifted riffs directly off King and Hanneman. No doubt.

That's why I am asking for your help. Yeah, you!

I picked up this copy of Slayer's first album, "Show No Mercy" about 12 years ago. As you will see, it isn't like your usual Metal Blade pressing. There are enough differences with this copy that I went online to see if I could find any information about it. I even emailed all the Slayer freaks in Europe who have their collections online if they knew anything about it. No reply.

So I am asking you, the hardcore community, as my last hope if anyone knows anything about this damn record.

Here's the deal.

The cover is normal. You wouldn't think anything about it.

The back cover however is this:

All the lyrics, thank you's and credits directly on the all white back cover.

The craziest thing is this, a reversed IRS Records label symbol. What the hell?

The spine only has this on it. No label or catalog number.

The labels on the record are different too as you now see the Metal Blade logo but on blue/green labels.

Also they list a side 1 and 2 where the regular issue has sides 6 and 66. Clever huh?

Also, the catalog number on the label is MT39 not the usual 71034-1. That leads me to believe it might be a Korean pressing, but I have no idea how that would correlate with the wacked out IRS logo.

If anyone knows what the deal is or has any information, please please, please leave me a message in the comments section.

Thanks and Hail Satan!