Old Soda Pop Bottles We Dug Up Some Old Antique Soda Pop Bottles, What Is The Best Way To Clean Them?

We dug up some old antique soda pop bottles, what is the best way to clean them? - old soda pop bottles

The interiors are covered with clouds of dirt. I do not want to ruin the letters in bottles. I believe that a dishwasher can be the best way, but I did not.