National Leather Manufacturing Company Utility Bag WD20

Next up is WD20, the Utiility Bag.  To me this looks like a smallish bowling bag, but I've also seen vintage airline bags with this shape as well.

Given that this is 'plastic' (probably some sort of vinyl really) these bags are in remarkably good condition, and remain very supple.

So far I've only seen the two colors here, but it is possible that there are others.  No plaid though.