There are millions of postcards similar to that. With no identifiable markings on the card or a picture with known surroundings it is very difficult, at best, to know much about them. I have hundreds of generic baseball postcards. Every now and then someone will ask about these and another member will see something they can identify and it's pretty cool. But those instances, with cards such as this one, are few and far between. Good luck!! (the bottom one of these is probably not identifiable)