
3 of the 119 premises the city classifies as collectibles are inside Mercado de la Ribera, at Ribera de Curtidores 26. The building the census itself names by its shopfront.

What is known about this building, along two different paths: one names the trade, the other counts the doors.
| Shop | Unit |
|---|---|
| ARTE CHINA | LOCAL 10 - 11 |
| SUBASTAS IMPERIO | LOCAL 15 |
| URREGUI ART | LOCAL 07 |
The city census calls this building "MERCADO DE LA RIBERA LC 50" in its own shopfront field, so here the match between layer and census is the city confirming itself.
Layer 5 of the city map service, Locales Coleccionismo, read on August 23, 2026, and the city premises census, consulted in August 2026. The layer returns no geometry: the positions come from matching each address against the census, and the precision field says how far each match got.