Commercially available

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Yellow blend Large-Flowered Climber.
Registration name: Traverser

Bred by Alister Clark (1864-1949) (Australia, 1928).
Introduced in Australia by Hazlewood Bros. Pty. Ltd. in 1929 as 'Traverser'.

Climber, Hybrid Gigantea, Large-Flowered Climber.  

Yellow to white.  Large, semi-double to double, in small clusters bloom form.  Once-blooming spring or summer.  

Climbing.  
Height of up to 19' 8" (up to 600 cm).  Width of up to 13' 1" (up to 400 cm).

USDA zone 6b through 9b (default).  Vigorous.  

The rose in commerce in Australia came from 'Glenara' but there is no positive proof that it is the original 'Traverser'.
The 1935 reference quotes “ a single plant extended along a fence to a distance of nearly 40 feet in Mr. Clark's garden”.