Gary Jones asked in the 000516 MMD about a Schulz Aria Divina belonging
to a customer.  Aria Divina was the Schulz house name for Recordo.  The
"Bardini..." part probably refers to the case.

In 1925 the Aria Divina system was probably the 5-step Recordo ("B"
type).  In 1926 Aria Divina was the late 16-step ("C" type) Recordo.
Since the piano was bought close to the transition period it could be
either type.

If one is not familiar with the various Recordo mechanisms, the only
way to tell for sure is to measure the stack vacuum while opening the
expression ports.  If the vacuum increases when a high level port is
open and a lower level one is then opened, it is a 16-step ("C").

Bob Billings