A rare and valuable original Pablo Picasso print worth an estimated $50,000 was stolen from a Milwaukee art appraisal shop a few weeks ago.

Bill DeLind, the owner of the art appraisal shop says his business partner noticed the original 1949 print was missing on Feb. 16, according to Fox News reports.

The original print was signed by Pablo Picasso in green crayon in the lower right hand corner and there were only 30 prints ever made of the artwork.

It is believed by the shop owner that the thief might not be aware of the value of the print, as the shop never puts prices or titles of any of the artwork held in their lobby.

WISN 12 Milwaukee

“Some of what went through my mind couldn’t be repeated on television,” DeLinf told Fox6. “But it was a shock and a big disappointment…I think most people are genuinely good and people don’t just steal things. So it’s always a disappointment.”

Unfortunately, the shop also has no security cameras, so they are unable to know who has stolen the print.

DeLind stated he has been planning on getting security camera for sometime, but due to the business of his schedule, he has not done so.

DeLind believes the thief may have walked in the unlocked door and not been aware that DeLind and his business partner were upstairs. He hopes cameras across the street captured the thief.

He also believes the thief is unaware of how much the print is worth because there were no signs indicating it’s value, he feel the thief “just got lucky.”

When asked by Fox6 about what he would say to the thief, DeLing responded: “First of all, bring it back. I’m not sure I’m in a position to negotiate, you’ll be forgiven or no harm will come, but I will say, I want the artwork back.”

According to Fox News in Milwaukee, the Milwaukee police have confirmed a report was filed for the stolen print. However, they have not confirmed if they have any leads or suspects.