We were given an old Montgomery Ward sewing machine in cabinet, owners manual and attachments included, but no electrical cord to connect to outlet. We have no year, but the back of the owners manual has "Printed in U.S.A." then over in the lower corner "6-51". The back of the machine has model 30 on it. And the machine itself looks (and feels! ) like it is made of cast iron. Can anyone give us any more information on this type of machine and if it's even possible to find an electrical cord for it?