"When isolating a plague-struck community or larger area, authorities had to make some arrangements for delivering messages and charity and selling such necessities as food and drugs. Direct contact with those being isolated was forbidden, and any coins coming as payment from a plague area were considered contaminated. Though rarely documented, there is evidence that such landmarks as large flat stones in fields or cleared woodlands served as points of contact. Goods and messages would be left by the healthy and retrieved by members of the isolated community. This might happen at predetermined times, or a signal might be given."
Encyclopedia of the Black Death, Dr. Joseph Patrick Byrne, p. 282
14 x 18 cm