Could be a Gibbon, based on the pictures at their current website.

33-34 Coupe Bodies

Downs went out of business and sold their molds to a new owner.

Bodies - 1933-34 Ford Bodies - Downs Custom Performance Automotive

Not sure it matters, since most brands don't offer a ready-made windshield frame. If would probably have to be custom made, from the windshield or the hardboard pattern for it.