Tuff Wheel - opinions/info wanted

lol.. yup thats a rim blow. i know a lot of 71 darts came with them. thats why i asked. my car had one originally and i sold it in the 90's dirt cheap not knowing what it really was. last one i had i got for $15 from the junk yard and sold it for almost $600. i took one out of the parts car i have and haven't decided if i want to sell it or hang onto it.