Those are pretty nice tandems. I used to sell them. Shop I worked at imported them raw/unpainted. Pretty sure they were made by Follis, though I wasn't the one dealing with the factory. We'd customize them a bit (e.g. braze-ons), paint and decal them as our house brand.

I see one substantive difference between the Before and After pictures: the custom "lay forward" cap'n seatpost has been replaced with a plain vanilla one.

Take good care of the headsets on those, since they are an obsolete size, 28 mm. That's "OS" but not quite as big as modern 1-1/8" steerers. Some years back, Wayne Bingham of Mel Pinto and Velo Classique said he had some 28 mm headsets, but they might be gone out of the pipeline by now.

The Follis/LeJeune tandem forks used OS blades and steerer, so it's a very confidence-inspiring fork. Workmanship is solid throughout.