Hi,
I have a 4 key Hammy for sale comes with Eb corps de rechange, open to sensible offers. The flute is a loud session flute as you would expect From Hammy.
The flute is a lefty, with brochure perfected also im including an accompanying keyless Eb body that Hammy made for the head..
The four keys are great and have been used for my repertoire of tunes, I’ve never strayed to need additional keys. Keys are Long F/ short F, Cnatural and G#
The flute is a great player, making space for a new arrival. 
Happy to supply more pics / info if interested.
kind regards