Thank Andy and Ian.

I am not sure how/whether to mount it behind the Tarpon/Avenger glass as the glass is a very heavy and large item without having it at 30 degrees from the vertical with a gun mount behind it. In addition you would have to sit behind it to use the working sight.

The US one is an exact match to the AM one apart from stamps and labels.

I bought some items from Curtiss (Aviation Antiques) which arrived this week- some of his items were cheaper elsewhere and some were cheaper with him. They were very helpful.

Nowhere else to buy things until Shoreham….