The first is a tin litho, Tetsujin, Japan, Osaka and Billiken. Earlier contemporary Tetsujin works via a remote control with walking action and illuminated eyes, near mint, 8-1/2". Original box with inserts and paperwork, near mint. The second is a Tetsujin No. 5, Japan, Osaka and Tin Age. Works, walks forward with illuminated eyes via remote control, 10". Original box with inserts and paper work, near mint. Condition: Dimensions: Largest Box : 10 -1/4" x 4 -1/2".