DH vampire

I must be getting forgetful. I thought the Vixen had metal spars, but wood ribs and skins. The only metal ribs were the ones either side of the fold mechanism, mostly for wear reasons. I won't argue, it WAS a long time ago! (44 years +/-)
If I'd known then that I would be interested now, I could have taken all sorts of useful photos, of all the bits that you simply cannot get now! (Hindsight, hey!?)