I finally got around to applying the “bugs” to the window glass. Those are the little safety-glass markings etched into each piece. About a year ago I got a special kit that included a custom-made stencil with the correct “Ford XXX Plate” marking for May 1931. The stencil is stuck to each window pane in the correct location, and special glass etching cream is applied to it for a minute or so. It’s sort of nerve-wracking: if you put the stencil on wrong or get the cream where it doesn’t belong, you would have to remove the glass from the car and go through a lot of trouble to polish out the mistake.