i've always thought the top straight style was 'choora' and the curved bottom as 'pesh', with the larger form of the upper one as 'karud'.
of course, it's be nice to know what the ones who actually made & used them called them. (it would probably meant 'knife'
)
i did a google for 'choora' and ask.com came up with a definition of "A slur for dark skinned people in Pakistan". it is also a sikh wedding ceremony where decorative red (coral) & white (bone) bangles are tied to the bride. kinda like my iv..er bone and coral beaded 'choora'
is it possible the smaller decorated versions are thus ceremonial (tho deadly) wedding versions similar to wedding nimcha? the groom might want to carry around a smaller version on such a day rather than be encumbered with the full larger kit of karud and salawar, but being the khyber area, one would also always want to be armed.