This Guaranty Agreement may be executed in any number of counterparts each of which when so executed and delivered shall be deemed an original, and it shall not be necessary in making proof of this Guaranty Agreement to produce or account for more than one such counterpart executed by the Guarantors against whom enforcement is sought. Without limiting the foregoing provisions of this Section 21 , the provisions of Section 10.10 of the Credit Agreement shall be applicable to this Guaranty Agreement.