Depends, I don't recognise it but if the system it relates to is still in active service then photo's of it alone are most likely rated UK SECRET, so either the system has been declassified or the seller is about to get into a big pile of poo.
Even if the item is no longer in service and if its a UK one judging by the look of it id say it isn't in service.
Where did he get it? And if he 'found' it as he will invariably claim to any authorities is it legal to sell off MOD property like that? Look at some of the other stuff he's got n all, he's caliming to be selling a radio that this 'fill gun' fits into.
Ill certainly be interested to see how much longer this thing stays listed now that people know about it
(edited to make my rubbish sentence structur more clear)
Erm thats a handset socket on the top. I know Crypto Ops are weird, but do they speak to their fills? Plus that battery looks a little too detatchable. I'm no Radio sort but that looks like a PRC type bit of kit
It looks like one of them radios I used to use on stag in the 80s. You know the sort with those stupid little mikes that fitted just below your adams apple. Even though I,m ex R Sigs I have,nt the foggiest about any comms kit whatsoever. Up the drivers !!!!
It's not a fill gun, without going into much detail it doesn't have the correct ports to be a fill gun and it looks like a radio but it doesn't seem to have any antenna connections... Puzzling. The second thing is a radio although who knows what kind.