No one knows who left a signed Salvador Dali etching called "Reflection" at a Federal Way Goodwill donation station, but bidding on the work surpassed $5,000 on Thursday.

The etching, from Dali’s "Cycles of Life Suite," is No. 126 of 150, the Tacoma News Tribune reported.

Bidding started at $999 on Nov. 6 and reached $5,005 by Thursday on shopgoodwill.com.

The News Tribune reported the item was simply left at the store.

"Any time we get an art piece with a signature or a number, we set it aside," Dylan Lippert, e-sales manager at Tacoma Goodwill, told the paper.

A quality control officer checked out the work.

"She looked online and said it was particularly a high-value item," Lippert said.

Lippert said the store manager then notified the online bidding operation.

"He said, 'Hey, I think we have a Salvador Dali,’ and he brought it here," Lippert said. "It just showed up on our donation floor. It was kind of a surprise."