Postage Stamp of the Week: Boston Tea Party

Okay, these are actually the Postage Stamps of the Week -- four of 'em -- that make up this painting of the Boston Tea Party. The set was issued in 1973, commemorating the bicentennial of the protest against British taxation without colonial representation... Since tax returns are due next week, I originally hoped to post a stamp commemorating the IRS. Unsurprisingly, none exists.