How to tell year of boiler manufacture........?

I'm looking at a used New Yorker but can't figure out it's age. Is there a way to tell by serial number or something please?

Here are some pictures, it's an FR-122-W

Thanks Dave

Attachment 14055Attachment 14056Attachment 14057Attachment 14058

its old. sometime in the 60's through early 70's It's pretty much good for scrap value

Thank you.