My bike which i paid a tenner for in 1997 from my step-brother, dont know how long he had it.
Raleigh Mirage - It 's had a few quid spent on it (tho it dont show)lol, on essentials like chain,crankset,pedals,seat,cables,brake blocks,tryes & such like.
I love the bike it has character + it rarely gets a glance , thus providing me with a reliable safe ride.