Máquina de coser eléctrica vintage Singer 15k80 con mesa, en funcionamiento

Singer 15k80 vintage electric sewing machine with table, in working order - see example of threading on piece of denim fabric in photos. It has been in my family since the 1950s, and I learned to sew on it, and used it for dressmaking. It was serviced a few years ago, and is working now, but it is not tested and needs a service now.  The work lamp is not currently working - it may just need a new bulb, I don't know.Here is some information about these machines: https://www.singersewinginfo.co.uk/15Collection only from Oxford.

Standard age related signs of wear.

Original table as well as instructions (some pages are torn or drawn on) and all accessories, as in photos.

Many thanks for looking.