@Deino I was about to comment about the H number too.
Here is a partial list of numbers
Edit:add 72
Serial H number Batch 04 H1111104 0105 07 H1111107 0108 13 H1111113 0204 23 H1111123 0214 30 H1741030 0303 67 H1101167 0318 71 H1102171 0320 72 H1102172 0321
These are mine so far (updated until today!)