Re the spelling of Sulmanique. The spelling of this foundling is "Sulmanesque".

1996. Heritage Roses in Australia Inc. journal. Vol 18, No. 4
p19 Sulmanesque. Named for Sir John Sulman, architect of the Lodge. The bush is very large and prolific flowering. Blooms are pink, cupped and moderately full. New growth is red and new buds rapidly form at leaf axils whether old blooms are removed or not. No record to date of seeds forming. This rose, with me, flowered through August and into September with soft peachy-pink very full blooms, quite different to those in the warmer months – one of the best Tea roses we have.

1996. Heritage Roses in Australia Inc. journal. Vol 25, No. 1
p7 Peter Cox. BL Sulmanesque – Mid pink tea.
p28 The first bishop, Sydney Linton, helped design the building, together with noted architect John Sulman, later Sir John Sulman of architectural medal and art prize fame. ……

1999. Dianne Ackland “The Australian Rose Directory” 3rd Edition 1999
[No listing for “Sulmanesque” in the main text]
p151. Sulmanesque [Listed in the David Ruston’s Budwood catalogue section].

2003. Heritage Roses in Australia. 7th National Conference, Hay, NSW. Proceedings.
p46 Brenda Weir. (deceased) (written March, 1992).
B.L. Sulmanesque (Rose 11) If this is not an Alister Clark rose it is certainly one this famous Australian rose-breeder would have appreciated. The bush is very large and flowering prolific. Thje blooms are pink cupped and moderately full. New growth is red and new buds rapidly form at leaf axils whether or not old blooms are removed. No record to date of seeds forming.

2003. Ruston’s Roses – Rose Collection 2003-2004
89 Sulmaneque [sic] Tea. Medium pink. Ex Bishops Lodge Hay.