The St. Louis Police Department is auctioning off 30 vintage Tommy Guns:

St. Louis police took them out of service perhaps 60 years ago, but 29 are still stored in a basement bunker at the police academy downtown, with a 30th in the crime lab. Chief Sam Dotson and some collectors think it may be the biggest police-owned stock of Thompsons in the United States.

And it is about to go on sale.

With the police budget ever-stretched, Dotson said the department is planning to auction off what could approach $1 million worth of the guns in the next six months, and put the proceeds toward new sidearms for the whole force.

More at the link, including specifics.