🔑✍️: This symbol represents the act of signing and validating a document with a countersignature. It signifies the importance of a secondary signature that confirms the authenticity and approval of the primary signer. The 🔑 signifies the key role played by the countersigner in ensuring the validity and integrity of the document, while ✍️ represents the act of writing or signing. Together, they represent the concept of countersignature as an essential step in formalizing and confirming the authority and legitimacy of a document.