6 favorite votes.  

Medium yellow Hybrid Tea.
Registration name: Mrs. Oliver Ames (hybrid tea, Verschuren, 1941)

Bred by Hendrikus Antonie Verschuren Jr. (1885-1947) (Netherlands, before 1941).
Introduced in United States by Henry A. Dreer Archive in 1941 as 'Mrs. Oliver Ames'.

Hybrid Tea.  

Lemon-yellow, darker shading, ages to lighter .  Strong fragrance.  45 to 50 petals.  Average diameter 3.75".  Large, very full (41+ petals), globular bloom form.  Blooms in flushes throughout the season.  Medium, long, pointed buds.  

Medium, glossy, dark green, leathery foliage.  3 to 5 leaflets.  

USDA zone 7b and warmer.  Spring Pruning: Remove old canes and dead or diseased wood and cut back canes that cross. In warmer climates, cut back the remaining canes by about one-third. In colder areas, you'll probably find you'll have to prune a little more than that.  Requires spring freeze protection (see glossary - Spring freeze protection) .  

United States - Patent No: PP 497  on  30 Dec 1941   VIEW USPTO PATENT
Application No: 401,369  on  7 Jul 1941