HP 50g -- too shifty?

[rprosperi]

(12-30-2016 10:02 PM)Garth Wilson Wrote:  Did the 48 and 50 never have keyboard overlays?

The 48 (both S and G flavors) was designed to accommodate overlays, quite similar to the 41, with small slits along the edges of the keyboard to retain the overlay. Many 3rd-party products (in particular Surveying) for the HP-48 family came with overlays. I believe the only HP-sold product for the 48 series that came with an overlay was the HP-82210A 41CV Emulator.

The 50g/49g+ and the 49g had keyboards without raised borders along the edges, so they really could not accommodate overlays, as there is no means to keep it attached. I've never seen a 50g overlay, but there could be some out there somewhere, perhaps affixed with something sticky?