I think you are viewing one on the largest private postcard collections about Nevada. I have had some limitations because I wanted to put the cards on the Internet so people can enjoy them. I wanted most of the postcards to be in color to make them more fun. I also wanted to be able to blow the postcards up to make them easier to view. These postcards probably average over 70 years old. Just like Nevada these postcards were created because of the Comstock, which brought the miners and railroads. ENJOY