Over the years I have signed my prints variously. I used to dry-mount my print and sign the mounted print with my name, then name and year, and I would sign the overmat. Now my practice is to title and sign the print including both the taking year and print year; I also include the year, and if it is a new image taken with my digital equipment, the date the image was made, the date it was printed and the material it was printed on. That information is not meant for display -- it is or would be covered by the overmat. There are different views about the validity of indicating an edition. In my view, it had some validity when printing in the darkroom, and it no longer has any validity when printing from a digital file.