The Ceremonial Ratchamankala is the Royal ceremony to celebrate a king whose reign lasts longer than all the former kings’.
In the history of Thailand/Siam there were 2 times:
1st in 1908, celebrating King Chulalongkorn (Rama V) whose reign lasted longer than the past Kings’ ever recorded (40 years).
2nd in 1988, celebrating King Phumipol Adulyadej (Rama IX) whose length of reign surpassed King Chulalongkorn (Rama V)’s (42 years).
It is likely that there will be no more for King Rama IX’s reign lasted 70 years and 179 days.
Attachment 62597
King Rama IX’s Royal Ceremonial Emblem
These photos below show King Rama V’s
Attachment 62598
Attachment 62599
Attachment 62600
Attachment 62601
Attachment 62602
Attachment 62603