(2) Vintage Blue /black /red Swirl 1970's Rubber Bowling Balls

I think these are Duck-pin bowling balls based on the weight. (1) weighs about 3 pound 8.1 ounces and the other 3 pounds 8.8 ounce on my postal scale.

This blue, red and black pair is not marked.
    The name "Mike J" is inscribed in one. I assume this is just a personal monogram.
    Balls are in used condition, each has a number of scuffs and nicks. The larger chips I included a close up photo of, not huge. There are only a few other small chips not pointed out and nowhere near as large as the ones pointed out.
Balls will ship in a flat rate priority box with as much bubble wrap as I can fit around each one.
Take a good look at the photo as set is being sold as-is.