Time Period

After saving my neighbor who hated me and my guts from dying from a heart attack I worked on the watch whenever the other me wasn't working on his design. Though I got little time to work, I perfected it so that I could travel back to World War one. To prevent a time catastrophe I waited until the other me time traveled and wondered why I didn't see him the time that I traveled. That didn't matter now. I pressed the button I installed on the back and instantly I was covered in a veil of white light. When the light subsided I took a look around and saw that I was indeed in 1914, but I was not in the right place. I decided to walk to the coffee shop down the street from my house praying that it was open in 1914. As I started to walk toward the coffee shop I started to think how rice I could get by introducing technologies that I knew would come anyway. I would do that later, right now I had to at least try to do a decent act with my traveling ability. I arrived at where the coffee shop should have been, but instead there was a sandwich and drug store. I guess I didn't get coffee, but at least there were newspaper, which is all I really needed. I picked up the paper and put it on the counter.
"That will be five cents," The cashier said. I pulled out my wallet and looked at the cash, knowing good and well that my cards wouldn't work. I had two fifties and one twenty. I pulled out the twenty and handed it to cashier. I put my wallet away, looked up and saw the surprise on the cashier's face. He put the twenty away and gave me a ten, a five, four ones, and 95 cents. I then asked,
"Where is your manager?"
"I am him," the cashier responded.
"Ok, here is ten dollars, use it after 1929. Also turn this place into a coffee shop, it will do much better," I told him.
"Ok, thank you, what is your name?" The manager inquired.
"The name is Jim," I said.
"Have a good day sir," the manager said as I strolled out of his store. I looked for a bench to sit on as I continued to stroll down the walkway. I noticed that I was getting strange looks, and then I realized why, I was wearing clothes from what I considered modern. Those clothes were jeans and a vibrant graphic t-shirt with a cat in a taco on it. Both of which looked a lot out of place compared to the suits that most of the other men were wearing. I came to a stop at a bench in a park, not caring what people thought of the weirdly clad man that was sitting there. I then looked at the newspaper and the date read June 27, 1914. I had one day to save Archduke Ferdinand and I was going to try, whether or not people thought that I could.