scraped from....where? The Lost & Found systems are all public? Sorry I haven't had to dig something out of a lost & found that wasn't a cardboard box under a front desk or whatever...
It is scraped from Pixit. They sell lost/found, evidence + seized item management systems. [1] The listings are public; it was cool OP turned this into a mini art piece.
[1] https://www.pixithq.com/
Am I not understanding your question? It's one system - and either their archives are public on purpose, or their endpoints are simply unsecured.