In examining the data on the Chalcedon décor on Loetz.com, we see that the date range provided for the décor (on the Ausf 109 page) covers a span from 1907 - 1935. In a way, this date range would preclude the décor from being New Chalcedon if we examine naming patterns and date ranges used on Loetz.com.
In support of that claim, if one looks at the décor now known as Orbulin (previously classified as part of Diaspora) There are classifications for Orbulin - 1900 and New Orbulin - post 1912. We also find Cytisus - 1902, Cytisus New - 1929; Chiné - 1897 Chiné New - 1929 est.
I think the pink piece you pointed out is likely related to this piece, and also related to the OP's example, but as of now, I have lingering doubts regarding a link to Loetz as New Chalcedon. But that is also my general style of research and attributions.... Some consider me to be overly cautious, and hesitant to declare attributions until I have seen enough supporting evidence.
At a minimum, they are very interesting pieces.
Craig