My New York City pedestrian signal display

Here is a picture of collection of pedestrian signals from the city of New York in operation. Four generations have been in use on the streets as shown in the picture. From left to right, CooperLED/AtLite Inc. hand and man insert (manufactured in 2002) inside of a Winko-Matic housing, 1989 Winko-Matic VI 2L, 1975 Marbelite LPS-20 bi-modal type, and Marbelite MP6-L (most newest and current pedestrian signal in use on New York City streets).