Hi
I bought some expired velvia 50 that came in a different film box. This might be a dumb question but the edge markings are on the bottom right correct, like normal? If you are looking at the emulsion side in landscape/ 5x4 style, they are on the bottom right corner?
If you hold the sheet film holder with the darkslide handle downward and the frame opening facing you, you lift up the flap to insert the film, then the film notches go on the TOP RIGHT. So if the holder is in Landscape orientation and the flap is to the right, you are correct that the notches are bottom right.