These were stuck in hats or into clothing and hardworking pilgrims could assemble quite a collection, as mentioned by Chaucer in his 'Canterbury Tales'.
[citation needed] The growth in the 19th century of travel for ordinary people saw a huge increase in the souvenir industry, as these new secular pilgrims - like their medieval counterparts - wanted to bring back reminders of their holidays/vacations and sightseeing, ranging from china plates to postcards.
[citation needed] After the Second World War, American GIs occupying Germany sent badges back to their loved ones, showing where they were stationed.
[citation needed] Another patch collecting specialty is police agencies such as sheriff, police, highway patrol, marshal, constable, park rangers, law enforcement explorer scouts, or other law enforcement related personnel.
Emblems worn on uniforms have been exchanged between officials as a sign of cooperation for decades, and displays of patches are found in police stations.