Gauck officials said the same Stasi operatives experimented with a range of chemicals to come up with new invisible inks and to secretly mark letters sent and received by the targets of their surveillance.
"I was in this tiny room in the BBC archives in Reading, and they brought me a box marked 'Letters from France'," she says.
The test involves finding and marking the letter "d" within a string of letters ("d" and "p"), only when 2 dashes are arranged either individually or in pairs above and below "d".
Delacroix's watercolors and drawings are now in the Pavillon de Flore at the Louvre marking… LETTER FROM EUROPE about what has become of Portugal in the years since the revolution of April 25 , 1975
Sometimes the recipient paid for the letter once delivered; other times the postmaster would stamp or mark a letter to indicate pre-payment.
The Figure, panel A, shows a map of Germany with the residences of those patients from whom virus sequences were amplified (marked by letter H in front of the specimen number).
To give himself flexibility as he carved the letters into the copper sheet, he had marked certain letters that could be left out.
The medical examiner had a slide show with generic drawings of the victims with their gunshot wounds marked by letters.
The New Yorker, March 25 , 1950 P. 25A new secretary in a government agency, familiarizing herself with the files, pulled out a folder marked "Crank Letters," which contained just that.
The squares marked with letters (A, B, C, D) represent the locations of the four iMac computer reading stations.
Sometimes (as in the excluded-middle schema, above) the blanks in a schema are marked by letters.
