RuuD Natural Gas Boiler Age

Morning members. Might just be me but, referring to you all as ‘members’ bring up images of, well, hmmm, … I won’t go there.Lol.

I would appreciate a guesstamit/assumption/conjecture/notion/one-feeling/roughly/there about/ I think/could be/looks like/roundabout/closest it resemble of a 60’s - 70’s - 80’s, 90’s RuuD Natural Gas, Natural Draft boiler seeing as I could not locate the manufacturing label.

Thanks in advance.