I don't have much data about ST's and CT's but I think I have found another VIN year that can be used to get your registration. If you have a different idea about the year than I do, please let me know in the comments. Please share your knowledge!
Summary of the question:
What year does frame number ST50-54**** belong to for my Honda Dax ST50?
I have been able to determine that it is a Belgian type, but the year was much harder to find/guess.
The only lead that I was able to find was an auction site that shows an ST50 with a VIN starting with 50. This is determined to be 1972. It is also not uncommon for honda to use the SECOND digit as a year indicator. So, in all theory, on a sunny day, one could argue that your ST50 is built in 1976.
1972 : 50****
1973 : 51****
1974 : 52****
1975 : 53****
1976 : 54****
Source for the 1972 VIN:
Frame nummer ST50 502140
Honda - Dax ST50 - 1972
catawiki : https://www.catawiki.nl/l/13901647-honda-dax-st50-1972
