I forget what city we were in at the time, but we were having breakfast. We had ordered orange juice and juevos ranchero (our favorite breakfast.) At a small table nearby our waitress took out some oranges from a large bowl of oranges floating in ice water. She then cut them up and began squeezing the segments in a small manual squeezer. I was intrigued and asked her where I could buy one of them. She gave me directions to a nearby tienda (store) where they were sold.
After breakfast, we went and bought one. Here it is. We have used it for many years and love it. Here is another picture of it.