After Boston Blackie and the Runt meet Betty Barnaby outside the train station they get into cab #591. When they pull over to the curb a short time later they are in cab number #577 and Lt. Matthews is following in cab #591.
When Ed Barnaby gets off the bus and meets is daughter Betty there are 2 benches in the background outside a building. The back of the bench to the viewer's right is obviously covered in some stretchy fabric to mimic wood and the creases are not smoothed out.