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15 favorite votes.  

Medium yellow Hybrid Setigera.
Registration name: Doubloons

Bred by Michael Henry Horvath (United States, 1934).
Introduced in Australia by Hazlewood Bros. Pty. Ltd. in 1936 as 'Doubloons'.
Introduced in France by Clos fleuri - Raymond Chénault in 1938 as 'Doubloons'.

Climber, Hybrid Setigera, Large-Flowered Climber.  

Golden-yellow, ages to lemon-yellow .  Deep saffron yellow buds, open flower rich gold.  Moderate fragrance.  Average diameter 2.25".  Cluster-flowered, in large clusters bloom form.  Spring or summer flush with scattered later bloom.  Ovoid buds.  

Climbing.  Glossy foliage.  

USDA zone 2b through 8b.  Can be used for cut flower or garden.  Very hardy.  vigorous.  Disease susceptibility: susceptible to blackspot .  

United States - Patent No: PP 152  on  3 Dec 1935   VIEW USPTO PATENT

Tetraploid

The parentage shown on HMF is that reported in the patent application. See References for other reported parentage.