Here's the mirror assembly I recently purchased from DMathieu. Got a Responder in your collection? It's not complete without one of these. DMathieu went to great lengths to resurrect this extinct item to exacting standards, and I appreciate his efforts.
I just received my order of three units and am absolutely thrilled. They truly are prefect. I have a crude one to compare them to and they are spot on. Great job! Now I need to find a green responder to fill out my collection.