@chrisaldrich You might like this, too: "The slip box presently contains 1.5 million slips referring to 12 million references;" https://agate.academy/projects.html?tx_agate_projects%5Baction%5D=show&tx_agate_projects%5Bcontroller%5D=Projects&tx_agate_projects%5Bquery%5D=deaf&tx_agate_projects%5Bsubmit%5D=Search&tx_agate_projects%5BitemsPerPage%5D=20&tx_agate_projects%5Bproject%5D=101&cHash=2c8e0b07c047b4827297610e7f63a9e8Unfortunately I didn't find a photo of their impressive cabinet. Altfranzösisches etymologisches Wörterbuch : AGATE