Most of the pics are for the newer Cubana, but here is a seller's photo. In the AUS patent, it is compared to 'Sonia' so I am assuming its a long stemmed, small-medium sized florist type rose. So basically like an apricot version of Kardinal 85 or Sonia.

www.treloarroses.com.au/Cubana-Rose

The photos here are for the other, newer 'Cubana' by Kordes.

Lineage:

'Korsorb' originated from controlled pollination of 'Mercedes' by 'Flamingo'.

Source: http://pericles.ipaustralia.gov.au/pbr_db/docs/1991052.doc

Note Joybells is nor listed as a Synonym for 'Cubana' on the PBR application submitted by Kordes.

Re: the synonym of Joybells listed for Cubana, HT. Kordes 1988.

Because Joybells was the registered name for the Robinson, 1961 floribunda.'Cubana'.
perhaps the listing of the synonym for the 1988 HT 'Cubana' is an error?