Looking for Rarity of White Labeled Bob Dylan & Jerry Garcia LP

Hello!
Recently at my nearby Thrift Shop, I came across a Bob Dylan record. It has no center labeling on the record. It's a White Label with the Silverish sticker on the back with " White Label Promotional Product".

Here is a link with all the info I have collected:
Unknown Bob Dylan Record. Wanting to Find out What it is. (Crosspost from r/Vinyl) : bobdylan

In short:
I found a White Label (Unlabeled) pressing of the 1987 "Let's Keep It Between Us" performance / Album with Bob Dylan and Jerry Garcia. There are pictures in that Reddit post I linked.

I am curious as to if it has any sort of value to a collector, and if it is rare or not. I'm not currently in the market to sell it right after I got it, but I am really curious as to it's rarity.

Hope you can get back to me!

Thank you!

Tyler Peterson

 

Post what is in the deadwax, that would help immensely to determine if it's a boot (likely) or a legit promo (which rarely, if ever, would be labeled "white label promotional pressing").

 

So, I'm pretty new to the Vinyl scene, but looking online, it seems that the "deadwax" is the portion between the label and the final track of the record. Would it be more beneficial for me to take a picture of said "deadwax" and throw it on here, or would recording the entirity of the vinyl be more beneficial, in case there are slight variations in the song compared to the commercial print?

 

Either way a cool find for for what you likely paid for it... be forewarned though, if it is determined to be a boot, your thread is probably gonna get deleted

 

Is bootleg Vinyl seen as a big no-no on here?

 

Discussion no. Trying to buy or sell, yes.

 

Update: In the Deadwax, I have found an engraving. On side A, It reads, "TSP - 016/A" and on side B it reads, "TSP - 016/B". There is also an "et" engraved on both sides in the deadwax. Anyone know what these mean?

 

The "et" could be this mastering studio, does it look similar? Elaton (2)

 

That image and the engraving on my record look about 100% the same! What would it mean if Elaton was the mastering Studio for this Vinyl?

It's a bit hard to see in this image, but I can promise you it's the same looking engraving.

 

I should have looked on Discogs earlier, it looks just like a black vinyl copy of this bootleg: Bob Dylan - The Live Adventures Of Bob Dylan & Jerry Garcia

 

Looks like the case is solved!
So, is it rare at all, or pretty common? It's not the purple marble vinyl, so I'm assuming it's not very valuable.