Member Saintourist has said in a Photo Comment:
"this rose found in Vietnam with the name Old Rose 'Bạch Trà' , meaning: White Tea. No one know when it came to Vietnam. People use it to flavor tea."

This is a most exciting find. How did who decide that the rose was in fact the polyantha ''Princesse Wilhelmine des Pays-Bas' 1886? Had the name been passed down through family records? From the two photos, It certainly looks correct. However there was also a china rose called 'White Tea' from 1821. The style of flowering should tell.