mostly-complete strike ties 3c Green Bank Note (158, pre-application tear) to 1874 cover to Lockport, Illinois, matching blue "Chicago Ill. Mar 30 2PM" datestamp alongside, fine strike, one of just four covers with this iconic cancel that was only used between March 20 and March 31, 1874, undoubtedly one of the most celebrated of all Banknote-era cancels