<PAGE>
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. )*
GRAND CENTRAL SILVER MINES, INC.
--------------------------------
(Name of Issuer)
Common Stock, $.01 Par Value
--------------------------------
(Title of Class of Securities)
384906 103
-----------------------
(CUSIP Number)
June 8, 1998
--------------------------------------------------------------
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:
[ ] Rule 13d-1(b)
[X] Rule 13d-1(c)
[ ] Rule 13d-1(d)
* The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.
The information required in the remainder of this cover page shall not be deemed
to be "Filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).
<PAGE>
- -----------------------
CUSIP NO. 384906 103
- -----------------------
- --------------------------------------------------------------------------------
1 Names of Reporting Persons.
I.R.S. Identification Nos. of above persons (entities only)
TWENTY FIRST CENTURY ADVISORS, LLC
- --------------------------------------------------------------------------------
2 Check the Appropriate Box if a Member of a Group (See Instructions)
(a) |_|
(b) |X|
- --------------------------------------------------------------------------------
3 SEC Use Only
- --------------------------------------------------------------------------------
4 Citizenship or Place of Organization Illinois
- --------------------------------------------------------------------------------
Number of 5 Sole Voting Power 371,051
Shares
Beneficially
Owned by
Each Reporting
Person With:
--------------------------------------------------------------
6 Shared Voting Power None
--------------------------------------------------------------
7 Sole Dispositive Power 371,051
--------------------------------------------------------------
8 Shared Dispositive Power None
- --------------------------------------------------------------------------------
9 Aggregate Amount Beneficially Owned by Each Reporting Person 371,051
- --------------------------------------------------------------------------------
10 Check if the Aggregate Amount in Row (9) Excludes Certain Shares
(See Instructions)|_|
- --------------------------------------------------------------------------------
11 Percent of Class Represented by Amount in Row (9) 5.86%
- --------------------------------------------------------------------------------
12 Type of Reporting Person (See Instructions) OO
================================================================================
2
<PAGE>
SCHEDULE 13G
ITEM 1.
(a) Name of Issuer: Grand Central Silver Mines, Inc.
(b) Address of Issuer's Principal Executive Offices:
1010 Ironwood Drive, Suite 105, Coeur d'Alene, Idaho 83814
ITEM 2.
(a) Name of Person Filing: Twenty First Century Advisors, LLC
(b) Address of Principal Business Office or, if none, Residence:
136 Heber Ave., Suite 204, Park City, Utah 84060
(c) Citizenship: Illinois
(d) Title of Class of Securities: Common Stock, $.01 par value
(e) CUSIP Number: 384906 103
ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO SS.SS.240.13D-1(b) OR
240.13D-2(b) OR (c), CHECK WHETHER THE PERSON FILING IS A:
(a) [ ]1 Broker or dealer registered under section 15 of the Act
(15 U.S.C 78o).
(b) [ ]2 Bank as defined in section 3(a)(6) of the Act (15 U.S.C 78c).
(c) [ ]3 Insurance company as defined in section 3(a)(19) of the Act
(15 U.S.C. 78c).
(d) [ ]4 Investment company registered under section 8 of the
Investment Company Act of 1940 (15 U.S.C. 80a-8).
(e) [ ]5 An investment adviser in accordance with ss.240.13d-1(b)(1)
(ii)(E);
(f) [ ]6 An employee benefit plan or endowment fund in accordance with
ss.240.13d-1(b)(1)(ii)(F);
3
<PAGE>
(g) [ ]7 A parent holding company or control person in accordance with
ss.240.13d-1(b)(1)(ii)(G);
(h) [ ]8 A savings association as defined in Section 3(b) of the
Federal Deposit Insurance Act (12 U.S.C. 1813);
(i) [ ]9 A church plan that is excluded from the definition of an
investment company under section 3(c)(14) of the Investment
Company Act of 1940 (15 U.S.C. 80a-3);
(j) [ ]10 Group, in accordance with ss.240.13d-1(b)(1)(ii)(J).
ITEM 4. OWNERSHIP
Provide the following information regarding the aggregate number and
percentage of the class of securities of the issuer defined in Item 1.
(a) Amount Beneficially Owned: 371,051
(b) Percent of Class: 5.86%
(c) Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote 371,051
(ii) Shared power to vote or to direct the vote NONE
(iii) Sole power to dispose or to direct the disposition of
371,051
(iv) Shared power to dispose or to direct the disposition
of NONE
INSTRUCTION. For computations regarding securities which represent a
right to acquire an underlying security SEE ss.240.13d-3(d)(1).
ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS
If this statement is being filed to report the fact that as of the date
hereof the reporting person has ceased to be the beneficial owner of more than
five percent of the class of securities, check the following . [ ]11
INSTRUCTION. Dissolution of a group requires a response to this item.
4
<PAGE>
ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON
Inapplicable.
ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE
SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY
Inapplicable.
ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP
Inapplicable.
ITEM 9. NOTICE OF DISSOLUTION OF GROUP
Inapplicable.
ITEM 10. CERTIFICATION
By signing below I certify that, to the best of my knowledge and
belief, the securities referred to above were not acquired and are not
held for the purpose of or with the effect of changing or influencing
the control of the issuer of the securities and were not acquired and
are not held in connection with or as a participant in any transaction
having that purpose or effect.
5
<PAGE>
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.
June 9, 1998
----------------------------------------------
Date
/S/ Richard K. Mastain, Jr.
----------------------------------------------
Signature
Richard K. Mastain, Jr., Managing Director
----------------------------------------------
Name/Title
6
