[UPDATE] It was pointed to me that a resistor (R281) is missing next to the battery location, meaning that there must have been some leakage before removal. This resistor will most likely need to be replace if a new battery assembly is to be fitted. I have therefore knocked the price down to reflect this. I have also added a picture of the boot up screen (Basic)

Very good cosmetic condition all round, just the usual slight yellowing of the front bezel. 

The unit turns out and goes to Basic, showing the 4Mb of RAM.

25Mhz 4Mb (2 onboard, 2 on partially populated Atomwide), 

HD was removed and the battery was cut off. 

It has a very low serial number as well at 1800

There is the smallest mark on the top panel of about 4mm length but there doesn't seem to be any indentation in the metal case so it might come off with the right cleaning solution. (see pics)

Having no Acorn keyboard or mouse, I have no way to test the floppy drive, but I am happy to have prospective buyers come and test with their own peripherals at my home.