Century Of Progress

a.k.a. South Pole Expedition
Standard Trailer Co., for the World's Fair 1933.
(cardboard box and 13 wood pieces, 4"x4.75"x1/2"; directions inside the box top)

Hordern's book presents 37 moves (40 rectilinear moves) to slide EAST to the lower left and 42 moves (44 rectilinear moves) to slide WEST to the lower left; for both solutions, here are the starting position, each of the positions in after a 2x2 piece moves, and one other position:





Further Reading
Wikipedia Page, from: http://en.wikipedia.org/wiki/Century_of_progress

South Pole Expedition Version



Standard Trailer Co., 1934.
(cardboard box and 13 wood pieces, 4" x 4.75" x 1/2";
Hordern's Book lists a puzzle of this name as the Flying Puzzle, but this one is is not.)