Unregistered

Hi! I visited Prague this summer and keep seeing the same two painting (prints) being sold, and really wanted to buy one but was not able to bring it back since I was backpacking. Now, I cannot figure out who the artist was and where I could get a print of the paintings. They were black and white scenes one with a red street car, and the other had a woman in a red jacket (with a man I think). I know its not much of a description, but if anyone knows what paintings these might be, I would really appreciate it!

Thank you very much for any help!