Why is My Art Print all Blue?

I have a print titled "Shoveller Duck". Looking at it online they are all printed in color but mine is all shades of blue. Did it show how get damaged or did it get printed that way? The only color is the black lettering. Other than the blue, it appears to be in excellent condition.

The print is titled Shoveller Duck and on the top left is "No. 66"; the top right is "Plate CCCXXVII"; the bottom left is "Drawn from Nature by J.J. Audubon, F.R.S.F.L.S; and the bottom right is "Engraved, Printed, and Coloured by R. Havell, 1836". There is a "1" by the duck on the left and a "2" by the duck on the right.

I can't seem to figure out how to add an image. Thanks for the help!
Patty