model A package tray ?

[Richard in PA]

I have 2 package trays both look exactly just like the A but here is the question the one tray is 5 inches front to back and 5 1/2 tall in the center the other one is 6 1/2 tall and 6" front to back also in the center. which one is correct for a late 31 coupe. and what does the other one go in? Also both have holes for rear roll down window ? Thanks in advance Richard