2 varieties are reported right - Thai number ๐ in the last digit of the date is OVAL (common variety) left - Thai number ๐ in the last digit of the date is ROUND (slightly uncommon)
1 - Deleting the 2551 date. If someone own a magnetic sample of this type, please make a photo and I will report to the group of collectors of Thailand.
2 - Add a line dated 2552 and modify the comments. 2552 - พ.ศ. ๒๕๕๒ normal spacing 2552 - พ.ศ. ๒๕๕๒ extra space inbetween two last digits of he date