Common use of Signature Guarantee Clause in Contracts

Signature Guarantee. [Signature must be guaranteed by an eligible Guarantor Institution (banks, stock brokers, savings and loan associations and credit unions) with membership in an approved guarantee medallion program pursuant to Securities and Exchange Commission Rule 17Ad-15]

Signature Guarantee. [Signature Signatures must be guaranteed by an eligible Guarantor Institution (banks, stock brokers, dealers, savings and loan associations and credit unions) with membership in an approved signature guarantee medallion program pursuant to Securities and Exchange Commission Rule 17Ad-15]17Ad-15 if shares are to be issued, or Notes are to be delivered, other than to and in the name of the registered holder(s). ASSIGNMENT FORM To assign this Note, fill in the form below:

Signature Guarantee. [Signature must be guaranteed by an eligible Guarantor Institution guarantor institution within the meaning of Securities and Exchange Commission Rule 17Ad-15 (including banks, stock brokers, savings and loan associations associations, national securities exchanges, registered securities associations, clearing agencies and credit unions) with membership or participation in an approved signature guarantee medallion program pursuant if this Senior Note is delivered other than to Securities and Exchange Commission Rule 17Ad-15]in the name of the registered holder.

Signature Guarantee. [Signature must be guaranteed by an eligible Guarantor Institution (banks, stock brokers, savings and loan associations and credit unions) with membership in an approved guarantee medallion program pursuant to Securities and Exchange Commission Rule 17Ad-15]] Section 203. Form of Reverse of Securities.

Signature Guarantee. [(Signature must be guaranteed) The signature(s) should be guaranteed by an eligible Guarantor Institution guarantor institution (banks, stock brokersstockbrokers, savings and loan associations and credit unions) unions with membership in an approved signature guarantee medallion program program), pursuant to Securities and Exchange Commission S.E.C. Rule 17Ad-15. EXHIBIT B [FORM OF FACE OF EXCHANGE SECURITY]

Signature Guarantee. [Signature must be guaranteed by an eligible Guarantor Institution (banks, stock brokers, savings and loan associations and credit unions) with membership in an approved guarantee medallion program pursuant to Securities and Exchange Commission Rule 17Ad-15]] ARTICLE THREE

Signature Guarantee. [(Signature must be guaranteed) The signature(s) should be guaranteed by an eligible Guarantor Institution guarantor institution (banks, stock brokersstockbrokers, savings and loan associations and credit unions) unions with membership in an approved signature guarantee medallion program program), pursuant to Securities and Exchange Commission S.E.C. Rule 17Ad-15].

Signature Guarantee. [Signature Signatures must be guaranteed by an eligible Guarantor Institution (banks, stock brokers, dealers, savings and loan associations and credit unions) with membership in an approved signature guarantee medallion program pursuant to Securities and Exchange Commission Rule 17Ad-1517Ad-15 if shares are to be issued, or Convertible Subordinated Notes are to be delivered, other than to and in the name of the registered holder(s).]

Signature Guarantee. [(Signature must be guaranteed) The signature(s) should be guaranteed by an eligible Guarantor Institution institution (banks, stock brokersstockbrokers, savings and loan associations and credit unions) with membership in an approved the Securities Transfer Agents Medallion Program ("STAMP") or such other signature guarantee medallion program as may be approved by the Registrar in addition to or substitution for STAMP, pursuant to Rule 17AD-15 of the Securities and Exchange Commission Rule 17Ad-15]Commission. EXHIBIT A [FORM OF FACE OF EXCHANGE DISCOUNT NOTE] CUSIP No. -----

Signature Guarantee. [Signature must be guaranteed by an eligible Guarantor Institution (banks, stock brokersstockbrokers, savings and loan associations and credit unions) with membership in an approved guarantee medallion program pursuant to Securities and Exchange Commission Rule 17Ad-15]

Signature Guarantee. [(Signature must be guaranteed) The signature(s) should be guaranteed by an eligible Guarantor Institution guarantor institution (banks, stock brokersstockbrokers, savings and loan associations and credit unions) unions with membership in an approved signature guarantee medallion program program), pursuant to Securities and Exchange Commission S.E.C. Rule 17Ad-15. ANNEX A [FORM OF PARTICIPATION AGREEMENT]

Signature Guarantee. [Signature must be guaranteed by an eligible Guarantor Institution guarantor institution within the meaning of Securities and Exchange Commission Rule 17Ad-15 (including banks, stock brokers, savings and loan associations associations, national securities exchanges, registered securities associations, clearing agencies and credit unions) with membership or participation in an approved signature guarantee medallion program pursuant if this Senior Subordinated Note is delivered other than to Securities and Exchange Commission Rule 17Ad-15]in the name of the registered holder.

Signature Guarantee. [Signature must be guaranteed by an eligible Guarantor Institution (banks, stock brokers, savings and loan associations and credit unions) with membership in an approved guarantee medallion program pursuant to Securities and Exchange Commission Rule 17Ad-15]] Section 203. Form of Reverse of Securities. ------------------------------

Signature Guarantee. [Signature must be guaranteed by an eligible Guarantor Institution (banks, stock brokers, savings and loan associations and credit unions) with membership in an approved guarantee medallion program pursuant to Securities and Exchange Commission Rule 17Ad-15]] (Reverse of Note)