Quick question for all you guys that know a bunch about cues. Thank you in advance 
There is a pawn shop I stop by every so often to check on pool cues and a few other items. I've bought several cues from them in the past, and have always stolen them because owner really doesn't know anything about pool sticks. Anyhow I stopped on today and bought an old MALI in pretty good condition for $20 bucks w/ case.
My question is this : I've owned maybe six MALIS over the years and all have had either a SS joint or that whitesh plastic. The one from today has a brass joint which I've never seen before on a MALI. Wondering if yall have seen a brass joint on a Mali before and if so how uncommon are they and can that help date?
Couple more things guys; no pics are available nor will they be, AND yes the MALI on buttcap is in green. Any input much appreciated, thanks again!

There is a pawn shop I stop by every so often to check on pool cues and a few other items. I've bought several cues from them in the past, and have always stolen them because owner really doesn't know anything about pool sticks. Anyhow I stopped on today and bought an old MALI in pretty good condition for $20 bucks w/ case.
My question is this : I've owned maybe six MALIS over the years and all have had either a SS joint or that whitesh plastic. The one from today has a brass joint which I've never seen before on a MALI. Wondering if yall have seen a brass joint on a Mali before and if so how uncommon are they and can that help date?
Couple more things guys; no pics are available nor will they be, AND yes the MALI on buttcap is in green. Any input much appreciated, thanks again!