The Okito-style Hindoo Inkwell is a device used to switch one objet for another, with the added feature of being able to steal the original away. The popular use for this would be to borrow a watch, place it into the Inkwell’s center cubby, where it is later found to have changed to a lemon. The lemon is then cut open to reveal a key inside. The key is used to unlock another device where the borrowed watch is found.
The Inkwells are Cobalt blue glass, and the knob between them is to a lid that covers the cubby in which the watch is original placed.
The name Hindoo, while obviously a misspelling, is the name given to Okito’s original piece, as show in the Albo book.
With instructions. New, never used, excellent condition.