I would ask for a photo with a tape measure in it to show the width of the jaws, and one to show the condition of the screw, and ideally nut.
But if it isn't a Record 1A, then the seller has shot themselves in the foot because you would have a "significantly not as described" complaint against the seller and ebay would almost certainly refund your money if you rejected it after seeing it, Including cost of return postage.
As a seller, never state something as fact unless you are absolutely sure of it.
A couple of catalogue pages posted up on this thread are very useful.
I wonder if the A means a vice originally supplied with a swivel base ?
Obviously the one at the start of this thread doesn't have that any longer if it ever did.
https://www.mig-welding.co.uk/forum/threads/record-6-vice-jaws.29958/
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