The discription says: "typical ex-army well serviced and looked after". Beeing an Army man myself (admittedly in another Army), I would not trust that, and I think you should try to look closer into it.
There has to be a reason that the Army has ridded itself of these saws. The pictures aren't too good, and doesn't tell much. Usually Army equipment has been through a series of users, which does nothing good to the equipment.
(1) It could be over-stock due to reorganization - in that case chances are they were among the more worn saws in the inventory.
(2) If the Army has changed out the whole inventory with a new model, they could be in any state of repair/wear.
(3) It could also be that the Army has classified them as not worth further investment in repair.
If the bids are not sky-rocketing the last days of the auction, I would probably have taken my chances anyway, if the auction had been here!