Also some of the Protar VII cells can be used too; I have found some Zeiss, B&L, and Ross cells in 480, 590, and 690mm focal lengths that are nice, and I am just experimenting with.
Edward Weston used a 480mm protar cell (albeit on an 8x10), and wrote a passage in one of his books where he talked about liking the image quality of the lens, 'even though some of the Tessar lenses of the day were sharper'; interesting to note that sharpness was not the ultimate factor in choosing a lens.
One final note is that I have found a Nikkor T 800mm telephoto lens which does in fact cover 11x14, although the published specs would indicate the lens does not cover much beyond 8x10. I read one other post where another photographer agreed with the fact that 11x14 coverage is possible.