Double old Hemerocallis

[gote]

We have had a largish Hemerocallis growing in a corner for many years. It has been in the family since before the war but practically never flowered.
This year it got one stalk - perhaps because of more light and hotter early summer.
To my surprise I find that it is a double.
Does anyone recognize it?
Göte

[Gail]

I have the double Hemerocallis fulva 'Flore Pleno' but it flowers so infrequently I can't remember if it looks the same as yours.....

[Paddy Tobin]

'Kwanso' is another possibility.

Paddy

[Stephenb]

Here's my Hemerocallis Kwanso Double photographed a few days ago:

[gote]

I have the double Hemerocallis fulva 'Flore Pleno' but it flowers so infrequently I can't remember if it looks the same as yours.....

Gail
That fits the description well. It is larger than most Hemerocallis grown today right? 
Stephen
Kwanso seems to have darker flowers and more pointed buds

Thank you all