You just know it ...

[Conal]

Is there any item, missing link,methodology or idea, which has not been attested to in archaeology, but that you are sure exists ...by hunch ... logic or divination ?

Indeed has nayone been proved right on such theory ?

[stevesarak]

Yes,

I have what some experts call a missing link roman sword. It's a combination of a Roman, 300 to 400 AD and a migration sword.

I've looked through books, talked to forums, talked to others that collect and no one has seen one like it before but they've said it is a cross over.

[Robert Vermaat]

Sure, the so-called 'Attic' Late Roman helmet..

[Crispvs]

The (ubiquitous in art for centuries but absent from archaeology) 'frankhelm'

Crispvs

[Carlton Bach]

bread with toppings - pizza, if you will. Our sources are very unclear on the whole matter, and there is conasiderable debate. But the Principate-era Romans were bread eaters. The idea is so obvious I refuse to believe it was invented, of all places, in 14th century Germany.

[Tarbicus]

Hardened leather water bottles, and wrist supports.

And an iffy one: TC segs.

[hoplite14gr]

Greek alphabet as we know it today in clay stamps attested to the Greek potteries doing bussines in Bronze age Egypt at the time of Rameses III.
Nothing similar has been found in Greek mainland. (items 16246, 16107 British Meuseum)
That would mean that the "Latin" alphabe might be older than thought to be.
Its hard to belive that the 24 letter alphabet and linear B coexisted but none so far has solved the mystery.
Kind regards

P.S hope it is not off topic.

[FAVENTIANVS]

What about a copper alloy segmentata?