Small sickle. Bukhara, 19th century

[ariel]

Originally Posted by fernando

Wouldn't those be smaller tools ?

Here are 2 images of quill sharpening. The size of the sharpeners is quite consistent with the example posted here: full size handles and small blades.

I could not find images of Oriental quill sharpening. But I kind of agree with Milandro: while generally knives were created with a specific function in mind but in real life could have been used for many functions.