The tas is made of silver and consists of a plate and a chain.
The plate is oval. It is decorated with two rampant lions looking backwards and supporting the five and five Tables of the Covenant. Above those are two rose. The frame for the calendar tablet is rectangular and is set bellow the Tables of the Covenant. At the bottom are two branches bound together by ribbons. The plate is framed on both sides by a curtain which is attached by ribbons and at the bottom the plate is decorated with foliate pattern and volutes. The plate is hung by a chain which is inserted through two rings attached to the back of the plate.