Perhaps you guys would know the identities of these two engine/chassis configurations? The Tucker frame photo is the actual photograph that was supplied to Phil Egan for use in his book, Design and Destiny, but I don't know if the description in his book is accurate or not for this particular photo, since I don't have my copy readily available. It has no proof marks, copyrights, or credits on the back of it, nor a date. Someone may recognize the tiny bit of the car in the background, if that helps to date it. There were probably more photos taken of this frame at the same time, but I haven't found any yet. I've always been under the impression that this was either one of the test chassis or a demo/display chassis...

This other frame and engine is also somehow Tucker-related, but I don't know how at this point. That is one peculiar engine, for sure, and this must also have a very interesting story behind it. It's possible this is just a relic from Auburn-Cord-Duesenberg, but I'm sure someone can identify it:

It has the studio's name (PERSONIUS ELMIRA) embossed in the lower right hand corner:

There is a Personius studio in Elmira NY, but it was founded in 1985. Tuckeroo, you're a pro at solving AutoPuzzles. Any ideas? Does anyone have any more information on either of these?