321. The notice of appeal in a civil action, proceeding or matter shall be accompanied by-
(a) except as provided herein, security for the respondent's costs of appeal in such amount and nature as is prescribed by rules of court, or acknowledgment of waiver of security signed by the respondent or his registered attorney; and |
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(b) proof of service on the respondent or on his registered attorney of a copy of the notice of appeal in the form of a written acknowledgment of the receipt of such notice or the registered receipt in proof of such service. |
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