This is a pair of true vintage slot mag wheels. I believe this particular set was made by E-T since they have the uni lug pattern. The uni lug pattern allows the steel lug inserts to be swapped out to fit different bolt patterns. The unilug inserts are readily available here on Ebay. These wheels accept inserts for 5 on 4 1/2 inch, 5 on 4 3/4 inch, and 5 on 5 bolt patterns. 5 on 4 1/2 inch is common to most Ford and Mopar passenger cars, 5 on 4 3/4 inch is common to most GM passenger cars, 5 on 5 was used on some big fullsize cars like Cadillac, etc. as well as some trucks.  These wheels have been stored away since the 80's or earlier. They are in solid condition with some wear as shown. Both wheels are straight and true. The wheels are for 14 inch tires and are 7.5 inches wide. They have about 3 inches of backspacing as shown.   Please confirm your specific application.