Can anyone identify theses B&W speakers?

My guess is 803D.  Maybe an earlier 703?

B&W, bowers and Wilkins, 

the tweeter on top is theirs, many models over the years.

Many models had flat tops, those you show are arched top and curved sides. Here is a stand mounted version, the ones you saw are a variation, must have been from the same time period

Nautilus 804 would be my guess.  could be 803s, they looked very similar.

803 more, 804 less and most likely not 703 due to arched top and free tweeter.

It’s either the 804 or 803 Nautilus or Nautilus S.  Compare the measurements — the 803 is bigger. 

The 803s look wider to me.  They were the same height but had bigger woofers and were wider.  

Looks like N803 or N804. 

Please disregard @nats1956 He’s not answering your question and is clearly just trying to sell speakers that’ll clearly be out of your price range by many multiples.  

@nats1956...it's against forum rules to sell stuff on here.

@nats1956 I don’t care what price you’re offering the 801 D4s. The OP is looking at original Nautilus 804 or 803 speakers at an estate sale that, even heavily discounted, your 801 D4s will be in an entirely different price stratosphere. You’re barking up the wrong tree here and are offering no value to the OP’s original question. Sell your speakers in a more appropriate venue.