On June 1, 2002, a company purchased on the open market $20,000 of a company's non-convertible (or convertible) bonds (2% of $1,000,000 bonds outstanding) at a price of "60" ($12,000 cash) plus accrued interest. The purchase or sale of non-convertible bonds with detachable stock purchase warrants follows the following rule: the market value of detachable warrants must be shown separately - to compute gain or loss. Thus, bonds issued with non-detachable stock purchase warrants would show the "difference' from "carrying value" as an "extraordinary gain or loss." Prepare the journal entries to record the purchase on the open market on June 1, 2002. Show support for the bond payable discount by preparing an amortization schedule.