[deadballfreaK]

I sell a lot of low grade pre war cards- t206, t205, E-90 etc. I put the card in a sleeve and put the sleeve in a top loader upside down so the card can't escape and get into the tape. I cut a piece of strong cardboard to exactly fit a standard sized envelope and use scotch tape to attach the top loader to the cardboard on all 4 sides. Painters tape might be better. I think I will try it. Plain white envelope marked clearly "NON MACHINE RATE" and "PHOTOS DO NOT BEND". Total cost to me maybe 75 cents for up to 3-4 cards. I have shipped hundreds like this with no complaints. pretty stiff and hard to bend. It allows me to offer a low shipping rate. Naturally for a high dollar card I will take some extra pains.