From your picture, Jim, the tailfeathers (shape/layout/mounting), wing, foats, enging pod are all EXACTLY like a Sea Bird - even the general hull (fuse) shape is pretty darn close.

My gut says who ever designed the Sea Bird, designed this one as well (they're WAY too close). Maybe in fact it's Lanier's "Sea Bird model X-001" - an early prototype before they went with the ABS production models.

Hopefully, you can get the photos to the folks at Lanier and they'll shed the light you're looking for.

Steve