4 favorite votes.  

Orange blend Hybrid Tea.
Registration name: Neville Chamberlain

Bred by Victor Lens (1889 - 1969) (Belgium, 1940).
Introduced in Australia by Hazlewood Bros. Pty. Ltd. in 1949 as 'Neville Chamberlain'.

Hybrid Tea.  

Salmon-orange, orange center.  26 petals.  Average diameter 4".  Large, full (26-40 petals), high-centered bloom form.  Blooms in flushes throughout the season.  

Tall.  

USDA zone 6b through 9b (default).  Can be used for cut flower or garden.  Vigorous.  

United States - Patent No: PP 428   VIEW USPTO PATENT