I cannot see enough detail on the picture of the frame opposite the yoke in post # 11 to determine the actual letters and numbers BUT I can imagine the first 3 characters. Is it a serial number? There should be a matching S-prefix serial number on the frame opposite the yoke that matches the serial number of the bottom of the butt frame.

Re: the first character. If the first character is B that would correlate with production serial numbers from the late 1980's through the mid 1990's which would correlate with the time frame of the Model 17-6 (Circa 1990-1994).

I can imagine the next two characters as FF? A BFF prefix correlates with 1990.

MOD 17-6 should be stamped on the frame opposite the yoke. Is it there? The serial # on the bottom of the butt frame should be there too.

Is there a serial number on the back of the cylinder or under the ejector star? Is there a serial number on the bottom of the barrel above the ejector rod? How about better pictures stamping on the frame opposite the yoke and the yoke? frame

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Scoundrel & Ne'er-Do-Well