I don't think it matters, Mibber. Historically, if a marble fit through a 3/4" hole but not an 11/16" hole, it's would be sold as a No. 2 (3/4"). The tolerances on size just aren't that tight when they're cranking them out.
I'm on a windows laptop, but I checked, and I see the same thing on my Samsung Android - weird.
Okay - I see it now! Had to open the video in a new window - must be Firefox.
I apparently had the base and stripes backwards on the JD but wouldn't Tommy's be a Lemon Lime if it's an NLR?
I'm thinking the names have changed since I quit paying attention to the Pelts, and FWIW, I have never seen a yellow JD tractor with green stripes.
Wow, really? I must be losing it. Where is the structure shown in the first pic relative to the structure shown in the second pic, because from the third pic, it looks like about half the marble is white.
I think the first is more likely a (lazy) swirl - probably Alley. I'd lean Alley on the second marble too (the one with a single pic). The third might be Heaton.