Spotted this on GB yesterday. Looks to be an LB produced No 4T with a mismatched REL scope.
Long Branch Enfield No.4 Mk1 (T) Canadian Sniper .303 - Bolt Action Rifles at GunBroker.com : 867836666
Interesting in that mount appears to bear obliterated serial number 71L0360, with a differing (perhaps bubba?) serial number stamped below it. REL No32 Mk II scope, 477C.
Not my auction nor do I know the seller. Maybe a match is out here for either rifle or scope/mount?