Vintage 1930's Underwood Universal Typewriter

Vintage Underwood Universal Typewriter in very good condition with case. It appears to be from the 1930's. I noticed two serial numbers, the serial number on the fifth picture is F826718. There is another number on the bottom frame 817817.All of the keys work very good. The only thing that I noticed is that when typing the letter Q the carriage does not advance to type the following letter.It maybe something simple to figure out.I do not see any dents in the body only very minor grazing most appear to be part of the paint. The carrying case is in good condition just normal such as shelf wear, corner wear, scratches. The latches and handle work but no key. For more specifics or clarifications please let me know.