Along with the extremely compact electronic TTL capable AF SB-23, SB-24 was introduced in 1988 to supplement the AF-Nikon F801 (N8808 in US). The F-801 has a few very interesting feature in its design at the time of its introduction.
 
This flash is not in working condition | As seen in the picture, the battery compartment has had some battery leakage and because of that, seems to not be working.

It comes in an authentic leather case with warranty documents and the original manual.