Hi,
I found this by Googling. Put this in: Precision deluxe Wizard sewing machine. You should find something. Like the following.
IT’s probably not an antique, just "vintage"… iirc, Wizard was Western Auto’s house brand,and it was probably a Japanese import machine. If this is a straight stitch only machine, it might be a knockoff of a Singer 15:
http://parts.singerco.com/IPinstManuals/15.pdf Gazillions of these "badged machines" were imported, especially in the 50s and 60s.
These machines are called Singer Clones. Most are pretty good machines, that were made in Japan. I collect them.
Hope this has helped. Carol