Reducing Washers

2 x 1-1/2 in 1 2 x 1-1/4 in 1 2 x 1/2 in 1 2 x 3/4 in 1 2-1/2 x 1 in 1 2-1/2 x 1-1/2 in 1 2-1/2 x 1-1/4 in 1 2-1/2 x 2 in 1 3 x 1-1/2 in 1 3 x 1-1/4 in 1 3 x 2 in 1 3 x 3/4 in 1 3/4 x 1/2 in 1