Lost ereader in Ryanair flight

I left my ereader (Papyre is the brand) in the 2nd September Ryanair flight from London Stansted to Dublin.

I have checked with Dublin airport's lost property as well as with Ryanair's at Dublin and Stansted but with no luck.

The ereader has a black leather cover and the book coming up as currently reading is "The War in the Air" by H. G. Wells.

I would appreciate if anyone could help me.

Regards

Pedro