Nestled within the wall, a meticulously constructed enclosure ensconces light, impervious to its intrusion, while also safeguarding against the penetrating gaze of x-rays. A masterwork of design, this container boasts a pair of interlocking doors, ingeniously synchronized to permit the opening of only one door at any given moment. Strategically positioned between the realms of x-ray rooms and darkrooms, these receptacles offer utmost convenience and practicality.