Italian Credenza or Credenza in walnut from the Renaissance period

Very pretty Credenza in solid walnut from the Renaissance period decorated with flat grooves and glyphs.
It opens with a large drawer and two doors of which we will notice the two large pull buttons in molded bronze with a beautiful brown patina.
The uprights are also sculpted and singularly topped with a coat of arms:
on the right upright, a coat of arms with the moving dextrochere on the left side of the shield,
on the left upright, a coat of arms with the sinister moving from the dexter side of the shield.
The set is flanked by two detached columns and rests on two claw feet at the front.
The lock and key are original.

Dimensions
W. 108 cm x D. 40 cm x H. 103 cm
Italy
Walnut
Renaissance period

Ready for a little puzzle !!
Before going further in the explanation of the word ''extrochère'', here is a little reminder on the structure of the shield. The shield is a reflection of the knight's body, including the head (chief), arms (right and left hand; right or left hand), hips (flanks or sides), bust (middle, heart or abyss ), legs (foot or tip). Surprisingly, the dexter is on the left and the sinister on the right, because we must imagine the shield placed or hung in front of the knight facing us, and therefore it is ''his'' right and ' 'his' left.
Dextrochère is said of a right arm figured on a shield. The arm is represented naked, adorned or armed, holding in the hand a sword or any other object.
Except in exceptional cases, the dextrocher is placed moving from the left side of the shield, which means that the arm emerges from the left side of the shield (i.e. to the right of the coat of arms when facing it in reference to the ''shield structure'' explained above !)
The word "dextrocherium" comes from the dextrocherium, a bracelet that Roman men and women wore on their right wrist.
We use the word ''senestrochère'' in opposition when it comes to the left arm which is represented on the shield.