aquarium de lyon

Fonderie Saint Luc, a Belgian specialty press with roots in fine-art printing, produced this novelty admission or souvenir piece for the Aquarium de Lyon under the Billet Royal label — a small French publisher that issues decorative banknote-format items for tourist sites and cultural venues. These are not legal tender and carry no monetary authority; they circulate as collectibles or keepsakes rather than currency, which puts them in an odd category for serious notaphilists but makes them genuinely interesting as printed ephemera. The watermark inclusion on a non-monetary piece is an unusual touch, suggesting Fonderie Saint Luc used security-grade stock rather than standard commercial paper.