The envelope may be a little worse for wear but this Graflex #1491 dark slide is NEW and UNUSED, wrapped in tissue and in the original  envelope. This oversize dark slide fits the Graflex (and maybe Fairchild??) 5x7 cut sheet BAG MAG.  It is OEM Graflex and it could be the last of its kind. It took me a while for me to make sure that this was what it is as documentation is sparse.  The size and leather pull tab led me, along with expert consultation, to identify it. If you have one of these BAG MAGs, you may want to grab this slide. You may never get another chance.