Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  COORS WILLIAM K
 2. Date of Event Requiring Statement (Month/Day/Year)
02/09/2005		 3. Issuer Name and Ticker or Trading Symbol
MOLSON COORS BREWING CO [TAP]
(Last)
(First)
(Middle)
C/O COORS FAMILY TRUSTS, MAIL STOP VR 900		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

GOLDEN, CO 80401		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Class B Common Stock 9,252,994
I (1)
By: Keystone Financing LLC
Class B Common Stock 320,807
D (2)
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
COORS WILLIAM K
C/O COORS FAMILY TRUSTS
MAIL STOP VR 900
GOLDEN, CO 80401		     X    

Signatures

/s/ Jeffrey H. Coors as Attoreny-in-Fact 02/21/2005
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) See Remarks section for Footnote 1.
(2) Reported securities held in Joint Tenancy with Rita Bass
 
Remarks:
Keystone Financing LLC ("Keystone") is a limited liability company that directly owns the reported securities.  Reporting Person is a Manager of  Keystone and  in such capacity has voting power over the reported securities, as well as dispositive power over the reported securities except in the event of a sale of all or substantially all of the assets of Keystone.  The members of Keystone, including The May Kistler Coors Trust dated, September 24, 1965 (the "Trust"), have dispositive power over the reported securities only in the event of a sale of all or substantially all of the assets of Keystone.  The Reporting Person is also a trustee of the Trust, and in such capacity has, along with the other trustees of the Trust, dispositive power over the reported securities.  As such, the Reporting Person is reporting beneficial ownership of all stock held by Keystone directly and the Trust indirectly, but  disclaims beneficial ownership of the reported securities owned by Keystone and the Trust except to the extent of his pecuniary interest therein.

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