11x7 inches isn't small. It's considered medium size and should, depending on when it was made, either have a creed patch or TINY white fabric tag with the production codes and style number near the bottom of the inside zipper pocket sewn into one of the seams. If you can't see it, try feeling for it.
The style reminds me of the Campbell line of Made For Factory bags from a few years ago, but those should have creed patches.
BTW, are you measuring the length across the top of the bag or across the bottom? What's the length across the bottom?
That was measured across the top, the bottom measurement is approx 8 1/2 inches. I did check for the tag inside and all there is is the made in china tag. I thought it looked like a campbell too. Everything about the bag looks good, the pattern is symmetrical, the lining feels right, the bag has a nice weight to it, not flimsy, stitching looks even. I;m not sure you can tell, but the C's are lurex, if that helps at all.