they are folded into 4 segments, placed in outer envelope and shipped flat. They all have varying degrees of slight yellowing. The worst is the1st fold of sheet one which was the first segment exposed to light when blueprints were removed from outer envelope. Blueprints were printed by Pan Galactic Press. Blueprints are for a Model KL-V11,  Battle Cruiser, Starship Class D7. Blueprint are clean and sharp with no extra ink or pen markings. Drawn by Michael McMaster.  Please see pictures and ask questions before bidding as items will be sold " as is ". There is no profit built into shipping. There is no handling charge and the shipping charge will be the actual cost (since discounts vary when shipping with eBay, item will ship ground by either USPS, UPS or Fed-Ex; whichever is cheapest).