A burglary victim who fought with two intruders at his home helped police track down CCTV images of the suspects using a bus ticket left behind at the scene.
As the 61-year-old man grappled with the pair he was able to pull off one of their jackets in which the ticket was discovered, Greater Manchester Police said.
Officers then trawled through CCTV footage from the bus to find images of the suspects, which they have now released to the public.
The men escaped with valuable jewellery from the home in Churchstone Walk in Baguley on May 17 .
Pc Rob Crossley, said: "The victim, a man in his 60s, was obviously taken aback to find two men rummaging through his bedroom.
"In the melee following the initial shock he has been able to remove a jacket from one offender and this has given us some positive lines of inquiry.
"From the jacket we recovered a ticket and from the ticket we identified a bus used by the offenders.
"Now we are releasing CCTV images of two suspects we would like to trace.
"We have made numerous efforts to identify the pair and we are now keen for any further help from the public."