Yes, by all means. Explain away.
You tried to make a big deal out of Frazier saying that the bag he had seen was like a bag one gets at a grocery store as if that had some significant meaning to your claim that Oswald had used the heavy duty bag made from TSBD materials to conceal the rifle.
You basically implied that a bag from a grocery store was the same as the TSBD bag.
Hence the question; Is it your claim that the TSBD was wrapping their books in paper similar to that of grocery store bags?