Anons,
There is a law or rule or something-or-other regarding imports and exports of art (and may have to do with being shipped directly to embassies). I wish I could remember which YouTube video I saw it on but it was about 3-4 years ago. It talked about how a recent-ish rule that allows for imports and exports of fine art to pass WITHOUT inspection through customs. Shipments of crates (or any form of containment) of any size can be labeled in such a way that avoid inspection.
When I saw that RC had a photography studio, this popped into my head. Since art can sell at any price, what better way to launder money than to pay for an expensive work of art, and have it shipped, possibly en masse. Of course, fine art, statues, and the like are accompanied by a guard or two for insurance reason.
Forgive the rambling. I hope this sparks a thought or dig or insight to help further this along. Thank for the read.