I just had a chance to look over my Craftsman stuff all bought thru out an 18 yr span figure 1980- 1998
So all my sockets run from 1/4" to 1/2" drive, have shallow and deep and standard and metric.
And all are a mix of V, VV, G, with a few GK which surprised me a bit but thinking back those few were purchased as separate single add ons after the fact and none were part of any multi pc kit.
Wrenches are either V, VV, or the inverted V^ mark
So I wonder if sourcing certain loose pack combination sets thru the old mail order tool catalog (which I did a lot) like a complete metric add listing vs buying certain packaged sets sold directly in a Sears retail store had any bearing on what codes you may have gotten during the same time period.
That metric set all 3 drive sizes are a V code.
And I have duplicates of many SAE sockets especially in 1/4" 6pt shallow/deep, 3/8" drive 6pt /12pt shallow and the 3/8" deep 6 pt.
Because I did purchase a large 3 drive socket/ ratchet set that came in locking plastic case which I subsequently tossed

(almost wish I still had that storage box today in a small way) sometime in the 90's for mobile stuff long ago , and that's where the duplicates come from.
One thing I do see is the chrome finish is distinctly different on those later G series sockets from that boxed set. Maybe you can see that in the photo. I can easily tell them apart. These are all 1/4" "G" series sockets and thinking like close to 10 years between purchases.
For grins just checked wall thickness on a few sizes with a digital caliper and though it doesn't vary much between sets what I did notice was that wall thickness could vary around the socket does just a little bit...about .005 on average