That is a nice drum with some very nice features...parallel strainer and DC hoops with the nicer style bottom hoop that doubles as handles. The shell might even be COB, chrome over brass, and when all things are consdiered that is a great drum!
Good find! What did you pay for it?
This drum and used older metal drums like it are a crap shoot.
First off, no way its COB, its plain old steel with a seam.
The parallel action strainer is cool, but may be problematic in cases/bags.
When you're considering an old(er) metal drum there's always going to be a great chance the lugs are distorted. These drums can easily sit in storage for years under tension, or just be under the same (high) tension for a decade or two like nothing, it happens quite a lot with snare drums.
The result is distorted monkey-metal lugs... the metal shell is unforgiving, unlike wood which will give a little over time, the monkey-metal always looses against metal shells.
I've gotten inside many older metal drums and've been treated to distorted lugs, there's simply no way to know unless you remove a few lugs.
If all your lugs on your (new) used drum are stretched from tension/time, what do you end-up with? Basically a usable shell and hoops.
Something to look out for 'if you can'.
Older TAMA metal drums are very susceptible (but not alone) to this lug distortion.