Exhibit 4.1

The following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were writ out in full according to applicable laws or regulations:

TEN COM	—as tenants in common	UNIF TRAN MIN ACT	—                  CUSTODIAN                                (Cust)                       (Minor)
TEN ENT	—as tenants by the entireties		under Uniform Transfers to Minors       Act
JT TEN	—as joint tenants with right of survivorship and not as tenants in common		(State)
Additional abbreviations may also be used though not in the above list.

For value received,                  hereby sell, assign and transfer unto

PLEASE INSERT SOCIAL SECURITY OR OTHER
IDENTIFYING NUMBER OF ASSIGNEE

(PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE)

  shares

of the capital stock represented by the within Certificate, and do hereby irrevocably constitute and appoint                                                         Attorney
to transfer the said stock on the books of the within named Corporation with full power of substitution in the premises.

Dated                                      

	NOTICE:	THE SIGNATURE TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER
Signature(s) Guaranteed By
THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM), PURSUANT TO S.E.C. RULE 17Ad-15.