Germantown graphic designer connects with grandfather in quest for Philadelphia gas street lamp

In November, Zachary Bird was hanging out in the 'burbs with his dad, Bill, when he saw the light. The handsome, 10-foot, cast-iron Victorian lamp with a crown in the motif of acanthus leaves sparked a conversation - and that led to a quest, more modest than Sir Galahad's, but no less epic for the 46-year-old Zack.