Need outside handles for screen door

I need to find handles for the outside of this screen. There were no handles mounted when we move in.

There are no markings on this door.

The hole spacing on the outside of the door = 3.5".

At this time I only need handles for the outside of the door and I dont care about locking - just need a way to open the doors from the outside.

However if I need to replace the inner handles at the same time I can do that. The spacing on the holes for inner handles is also 3.5".