The physical version of this model was part of a prestigious collection of architectural paper kits active from 1967 to 2016. Known for their high precision and historical accuracy, these kits often featured:

While "rar" files are often shared in community forums for archival purposes, official digital downloads for L'Instant Durable are rare because the company specialized in printed book-form models.

: The Chartres model is typically produced at a 1/250 scale .

: The kits were noted for their beautiful color printing and detailed textures that mimic the actual stone and stained glass of the cathedral. Downloading and Digital Versions

: It includes intricate details of the cathedral's distinct mismatched spires—the "old" 1160 spire and the flamboyant "new" 1506 spire.