I have one which I think may be the earlier one as my scales weigh it as 0.6g, but I'm not sure still as my scales might not be totally accurate.
If anyone can point out an obvious difference that I might be missing I'd be most appreciative. Thanks.
There is also an significant difference between the right symbol on the bottom row. Look at the space between the two horizontal bottom lines of that symbol.
The difference in weight must be significant enough (0.65 gr - 0.48 gr) if you use a scale with an accuracy of 0.01 mg. If you use a scale with an accuracy of 0.1 mg, the values will be close to each other because of the rounding of numbers and then I understand you want more certainty.