Police are looking for the assailant who posed as a trash inspector, then robbed an 83-year-old man at knifepoint, handcuffing the victim to a railing at a West Oak Lane bar.

Philadelphia police said the attack happened after the suspect, carrying a clipboard and bag, knocked on the door at Brownie's Par Four Lounge at about 1:20 p.m. Monday.

The man posed as a trash inspector and spent several minutes inside the lounge, located at 7137 Ogontz Ave., police said.

He then punched the 83-year-old man in the face, knocking the victim to the ground, and brandished a knife. He then demanded money, a cell phone and a Masonic ring from the elderly man, police said.

The assailant then handcuffed the victim to a railing inside the bar while he unsuccessfully tried to open the cash register.

The suspect fled when the victim yelled for help, after the assailant took the man outside in order to access the second-floor stairs at the building, police said.

The suspect was described as black, 35 to 40 years old, 6 feet 5 inches tall and having a thin build and a light beard. He was wearing thin-rimmed black glasses, a long, black coat, a dark-colored hat, dark-colored pants and dark-colored shoes at the time of the incident.

Anyone with information is asked to call police at 215-686-8477 (TIPS) or send a text message to 773847 (PPDTIP).

Contact Emily Babay at 215-854-2153 or ebabay@philly.com. Follow @emilybabay on Twitter.
Contact the Breaking News Desk at 215-854-2443 or BreakingNewsDesk@philly.com. Follow @phillydotcom on Twitter.