I also feel that some of the "best" doubles were made in England.
However don't let that put you off guns made elsewhere.
The thing is that, when buying your first double, it can be hard to determine how well a particular gun will work for you.
Just buying any pre war English double will not guarantee that it will do everything right for you.
You really need to handle and shoot different doubles untill you can aquire a "feel" for them.
Then you will soon come to know what works and fits and ballances and feels best for you.
When I was fiancial enough to buy my first double, I was prepared to accept almost any reliable gun, and worry about fit and feel later.
Thesedays, I would definately want to handle any double before buying it, unless it was a bargain too good to refuse.
For me, I want a double that fits well, handles well, and is not too heavy, and that functions reliably.
It would of course have to shoot well and also have to be affordable.
If a gun fills these requirements, I am not too concerned if it was not of English make.

I cannot give any advice regarding the Searcy as I have never handled one.