3 favorite votes.  

White, near white or white blend.
Registration name: Wedding Bells (rambler, Walsh, 1905)

Bred by Michael H. Walsh (United States, 1905).
Introduced in Australia by Hazlewood Bros. Pty. Ltd. in before 1911 as 'Wedding Bells'.

Hybrid Multiflora, Rambler.  

Light pink, white undertones.  Medium, semi-double (9-16 petals), in large clusters, cupped bloom form.  Once-blooming spring or summer.  

Climbing.  Light green foliage.  

Height: 12' to 15' (365 to 455cm).  

USDA zone 6b through 9b (default).  Very vigorous.