I have bought the bag of "the newton shop(Shinjuku,Tokyo JAPAN)" original one. It's a bag for NewtonKeyboard and NewtonPDA, and it makes the NewtonKeyboard immidiately usage as soon as opening bag.
It's type is "ATC-433" made by AudioTechnica Co. known as manufacturer of Audio&PC accessaries.
The price is 6,980yen(blue,green). But red is 4,980yen,discounted 2,000yen! The shop assistant said "There is no more demand for red one, so discounted 2000yen"
If you like red one or accept it, you'll get profit.
the ｎewton shop

It has a handle, usability for portage.

Opening zipper, there are two pocket.

NewtonKeyboard is fitted bottom of picure. Keyboard cover is shut down in left picture. Keyboard cover has label of Audio Technica Co.

I got the tongue off. If I use the bag with Newton, it may be usaful for cover of NewtonPDA. But it will be interruption for use with Palm/Pilot.