Lionel 6176 hopper car rare no built date & 6076

This is a yellow 6176 hopper car with out a build date and car number on it. Nice wheels and trucks. Nothing broken. The other hopper is a black 6076 hopper thats in nice condition as well. Both have good working couplers. Email me with any questions. See my other 1960's lionel trains I have on ebay. I combine items for cheaper shipping.