^ @
Triple Jim I am honored.
I'd like to clarify...referencing Danno's pics...notice some of the invisible, internal passageways taking abrupt, angled turns? This is where the machines are so extremely effective... while safely leaving surface structure unaffected...inside and out.
Impressive brass restoration too. Provided jets have not been previously damaged or mauled, eliminating the cost of new.
Yes, pic is legit before/after...not "faked".