Needing help with lathe identification and year of manufacture

[Tradert]

I have a south bend lathe that I'm a bit puzzled about. Here is what I know. The catalogue number is CL 670 RG and the serial number is 34937K. I believe it to be a model A light 10 (10k) with a 4 1/2 ft bed. What is confusing is that it has a gap bed and I cannot find any mention of south bend manufacturing a light 10 with a gap bed. I called South Bend and they couldn't help me but referred me to this forum. Is the "G" in the catalogue number indicative of a gap bed? I can't find any info to indicate it is. Also I have not been able to determine year of manufacture. It's been unused for a number of years and I am disassembling it to clean, inspect, and replace any worn parts. The bed, even the gap portion, still has most of the factory scraping marks so I'm guessing it is a newer lathe or one that wasnt used much. It is 12 speed with quick change gear box, micrometer apron/saddle stop, 1 1/2 x 8 spindle, and a thread dial. What have I got?

 

[swells]

Yes, The G is for gap-bed. By serial number it's a late 1977 or early 1978.
This is an older catalog but shows the gap-bed 10K.
https://wswells.com/download/1963-10K-gap-bed.pdf
Refer to this page for the Apron on a 10K gap-bed:
http://www.wswells.com/fte/NK-carriage-index.html
and the correct parts file is:
http://www.wswells.com/fte/carriage/NK-carriage/1981-PL-1401-1402-10K-apron.pdf

 

[Tradert]

Thank you very much! That will help a bunch