Walberg & Auge used the shells that came to them in trades for their hardware with major drum companies. Many (probably most) W&A drum sets are an amalgamation of components from Ludwig (maybe WFL), Gretsch, and Rogers. I agree that the vent hole on the bass drum looks like it has the W&A fittings minus the actual round badge surrounding grommet and brass ring. So, it's likely that the bass drum shell is from Gretsch with lugs from WFL or Ludwig. I would guess the same thing for the floor tom on which the drum's owner had replaced the W&A badge and grommet with a WFL badge and grommet.
Here's a pic of the interior of the floor tom, which looks to be a 3 ply Gretsch with added rering. I looked for RGB signature inside the shells but can't find any. Also, I thought that the Gretsch ft mounts/legs were a replacement for spring-loaded WFL's, but do not appear so. All this is leading me to Walberg & Auge. What do think, Leedybdp?