I searched the web and found one picture of an LG30. It was right here on this forum! Forum member MVLAZ posted a shot of one a few years ago, in this thread: viewtopic.php?f=10&t=1186&start=15
So tantalizingly close...it's just a front shot. A view of the back would probably help. I have a pretty good idea what it would take to lace this one, but would love to see the backside. I'm guessing that the lace through the fingers just go through the top of the web- one end straight through and the other end making the spiral. Then the two loose ends tie on the back of the thumb. The lace for the web is most likely a separate lace, or maybe two separate laces, one in the middle section and one at the bottom.
Maybe you could contact MVALZ and see if he still has that one.