TopengPajegan.com is the website of Sean Aquino he does traditional dance, mask carving and theatre. He is also a
submit queries to: sean[AT]
The first mask revealed in the series of introductory dances (penglembar) that precede the story of the Topeng is usually that of the Patih Manis or Prime Minister. (source "Balinese Masks" by Judy Slattum)
In my experience both this mask and another rougher variation are referred as Topeng Keras. This mask was made by I Ketut Kodi and I Wayan Tangguh. I use this mask for performance.