Anybody got Utica Boiler info (date)

Utica Boiler
serial number is 373B
model number is P6B175A

Thanks in advance and may you have a lucky day for the answer.

For anyone researching this thread ,
Anything before 1979 is wysiwyg
In this case March 1973

Hey, Bob.

You could have waited at least an hour before posting the answer.

I never get the the technical threads until very late evening or the wee hours of the morning.