Winnie, not sure on time frame. I think the "pumpkin" marble was 70's or 80's.
As for the Nationwide bag, I found one with the 3 metallics in it also. Here's a pic. Also, these bags were used by insurance agents for promos. Here's a picture of one, front & back. Also, there are filled ones of these, too.
The Champion made bags are a crapshoot sometimes. Even with the original one that I posted, if there were older headers/labels like this in the factory sale, this could be a filled one. If so, at least it had some good Champion marbles in it.