Unfortunately I have only one khyber and it is from the most common type. With this type of pommel, there is a small metal round piece protruding from the tang. Does anyone know what it was used for?
Anyway, the example from Oriental Arms archive that Yannis has shown is really different, but in my opinion not so much because of the guard, which was added to it later due to military standards, but because of the hilt construction.
In Ashoka Arts sold items archive I was able to find this khyber, which is of the first type (as defined by Ariel's starting post, for lack of a better term), but nowhere I was able to find another one with the same hilt construction as the one posted by Yannis:
