I'm not 100% sure but I believe it's from the late 60s, it has the old "Special X" dipper.
I'm using the new updated charge card and depending on powder I use either the Special X (.3) or .5 dipper but I weigh my charges and use multiple books and sources. I actually haven't used the charge card since I started.
The die body just says "Lee Loader" no other stamp.
I've actually gotten the original die and tools to work really well but I did buy a replacement die from Lee, I also picked up a 9mm die since most of the tools are the same.
What's kind of cool is the new 38/357 die has a different crimp than the original die. The original die has a normal roll crimp, the replacement die has what I'd describe as a cross between a roll and taper crimp. Anything with a crimp groove gets the original die, Anything that doesn't gets the new die.