Goods which have been found by the Commissioners to have become
surplus, obsolete or unusable, and whose current estimated value is
$10,000 or less may be disposed of by competitive offers, price quotations
or by public auction, advertised or publicly posted sale to the highest
offeror, trade or exchange for goods, or by price quotations or offers
as provided for in goods over $10,000 set forth herein. All goods,
which have become surplus, obsolete or unusable and whose current
estimated value exceeds $10,000 shall be sold by one of the following
methods:
