Interestingly the Chinese "Yardway" makers plate appears on a Halvorsen 38 for sale, even though that particular boat was built in Australia. I`m thinking Harvey H licensed his designs to Yardway at some stage.
The 42 looks to have a Halvorsen 40 hull, maybe extended. The pilothouse is unusual for Halvorsen, and gives rise to more stairs, like a sundeck.
Now, if it had twins instead of that big single.....
Island Gypsy 36 Europa "Doriana"