108 F.3d 1373
NOTICE: Fourth Circuit Local Rule 36(c) states that citation of unpublished dispositions is disfavored except for establishing res judicata, estoppel, or the law of the case and requires service of copies of cited unpublished dispositions of the Fourth Circuit.UNITED STATES of America, Plaintiff-Appellee,v.Frederick Finley DAVIS, Defendant-Appellant.
No. 96-4463.
United States Court of Appeals, Fourth Circuit.
Submitted Feb. 27, 1997.Decided March 13, 1997.

Jacqueline Ann Hallinan, Charleston, West Virginia, for Appellant.
Rebecca A. Betts, United States Attorney, Michael L. Keller, Assistant United States Attorney, Charleston, West Virginia, for Appellee.
Before MURNAGHAN, NIEMEYER, and MOTZ, Circuit Judges.
OPINION
PER CURIAM:


1
Frederick Finley Davis pled guilty to distribution of cocaine base, in violation of 21 U.S.C. § 841(a)(1) (1994).  The district court sentenced Davis to serve 135 months imprisonment to be followed by three years supervised release.  He appeals his conviction and sentence.  Davis's counsel has filed a brief in accordance with Anders v. California, 386 U.S. 738 (1967), raising three issues, but stating that, in her view, there are no meritorious issues for appeal.  Davis's counsel provided him with a copy of the Anders brief and informed him of his right to file a pro se supplemental brief;  he failed to do so.


2
Davis's counsel presented the following issues for review:  whether the district court erred in using a statement Davis made to a police officer, allegedly without the benefits of a Miranda warning;*  whether such statement provided a reasonable indicia of reliability to support the district court's findings of relevant conduct;  and, whether the district court properly calculated the amount of cocaine base attributable to Davis for sentencing purposes.  Finding no reversible error, we affirm Davis's conviction and sentence.


3
As a result of Davis's guilty plea, he has waived review of all antecedent, non-jurisdictional errors.  See Tollett v. Henderson, 411 U.S. 258, 267 (1973);  Hall v. McKenzie, 575 F.2d 481, 484 (4th Cir.1978).  Therefore, Davis's claim that his non-Miranda statement was used against him is not reviewable on appeal.


4
Davis's remaining claims challenge aspects of the sentencing proceedings;  however, because Davis did not object during the sentencing hearing, we review these issues for plain error only.  See Fed.R.Crim.P. 52(b);  United States v. Olano, 507 U.S. 725, 732 (1993).  An appeals court will not notice an error raised for the first time on appeal unless (1) there is an error, (2) which is plain, (3) which affects the substantial rights of the defendant, and (4) which must be corrected to avoid a miscarriage of justice or damage to the "fairness, integrity or public reputation of judicial proceedings."  Olano, 507 U.S. at 736-37;  see United States v. Cedelle, 89 F.3d 181, 184 (4th Cir.1996).


5
On two separate occasions, Davis was monitored selling cocaine base during controlled buys with Government operatives.  After his arrest, he admitted to a police officer that he had been selling approximately $1000 worth of cocaine base per week since being released from prison to begin serving a supervised release term for a prior offense.  The Government calculated this time span as thirty weeks.  To ascertain the relevant conduct for sentencing purposes, the Government took the lowest per-gram price of cocaine base that Davis sold to the Government operatives and divided that price into Davis's admitted drug income of $1000 a week for thirty weeks.  The district court accepted this extrapolation and the Government's final calculated range of 50 to 150 grams of cocaine base as relevant conduct, and sentenced Davis accordingly.


6
When no drugs are seized during an arrest, or when the amount seized does not reflect the scale of the offense, a sentencing court may consider the sums of money involved in the offense to reach an approximation of the quantity of drugs for which the defendant should be held liable.  See United States v. Hicks, 948 F.2d 877, 882 (4th Cir.1991).  We therefore find that the district court did not plainly err in its calculation of the amount of cocaine base attributable to Davis for sentencing purposes.  For the foregoing reasons, we affirm Davis's conviction and sentence.


7
In accordance with the requirements of Anders, we have examined the entire record in this case and find no potentially meritorious issues for appeal.  This court requires that counsel inform his client, in writing, of his right to petition the Supreme Court of the United States for further review.  If the client requests that a petition be filed, but counsel believes that such a petition would be frivolous, then counsel may move in this court for leave to withdraw from representation.  Counsel's motion must state that a copy thereof was served on the client.  We dispense with oral argument because the facts and legal contentions are adequately presented in the materials before the court and argument would not aid the decisional process.


8
AFFIRMED.



*
 Miranda v. Arizona, 384 U.S. 436 (1978)


