Craig, it appears you've jumped into the deep end with both feet.
It will be fun to see this one rise from its ashes. I'm looking forward to the posts.
CVA imported percussion revolvers and their kits in the mid 80's.
They had a line of Spanish made muzzleloaders (pistols & rifles).
But I believe the revolver line were exclusively Italy, Probably ASM or Uberti possibly DDG.
Does it have a date code [ A -something) or perhaps [roman numerals]?
The legal defender connection appears correct also.
Years ago, I bought some heeled bullets from
Gad Custom Bullets (more like
EGAD!)
casting was something else with Dia. all over the place .379 to .392 (all had to be sized)
some were unusable (heat wrinkled) and poor casting.
But I did manage to load some, all that effort made HBW's more user frendly.
Still, heel based has its pluses, you might want to give them a second thought, (not EGAD's though)
try Springfield Slim.