Peter, I'm not close enough to see this show, but I have alerted my brother who lives within driving distance.
The location of this car show is unclear to me, "East Lawn OVP Settlers Green " is what shows in the notice.
Is that in downtown N. Conway, at the Mt Washington Hotel, or at a secret location known only to locals ?
2 years ago I happened on a local car show organized by the White Mountain Cruisers (Littelton, NH ) in Bath NH.
Bath has a covered bridge and the oldest (claimed ) general store in the U.S. More pics of the cars later.
I will be in VT & NH in early October, stops will include the Fryburg Fair and the Maine coast.
Here are a few cars that showed in Bath that Sunday in 2017.
Within sight of this little square was the shop where I worked on my first Opel and Vauxhall, 1958.
Opel and Vauxhall pics are from internet, I took no pics then because I had perfect memory.