Case has mini (3.5" closed) wharncliffe trapper, with equal length wharncliffe and clip blades. The handle colors are rather...bright, though. There's also the copperhead that I just spent 5 minutes looking for but TLARbb beat me to.
As TLARbb mentioned Fight'n Rooster made a jack (they call it a sway back, but it's more of a congress jack) with a wharncliffe master and secondary pen, but all that I've seen have MOP handles (sexy, but not durable).
If you can suffer a pen blade configuration, there's many, many more choices that are available to you. Case mini wharncliffe copperlock, plus any number of half congresses, half whittlers, pen knives, hawbaker muskrats, etc from many, many brands.
And of course there was the 2009 BFC knife, a barlow with equal length clip and wharncliffe blades in D2, with stag handles made by S&M/Queen. If you can find a forumite that will sell you one...