Welcome to the board
8498tx If your machine is back clamping it is likely a 66-1 and by the age probably New Jersey. If you fold out box divides in to 4 we call those puzzle boxes. Sewing machine oil and soft cloth. Also get a Zoom spout of sewing machine oil and oil the ports, take the circle medallion off the back pillar, take off the faceplate and open the bobbin side. You will find all sorts of places where iron rubs iron oil them all.
Never get water near the decals, it will turn them to silver color.