@blokey I just ran across this great resource you've started! Thanks for all the interesting info!!
I am curious about the CCK 1902 being called a small slicer though since mine is 460g and definitely not what I would consider a slicer like a 1302. In fact, I got mine specifically as a more all purpose chopper/slicer and for the heavier tasks that I wouldn't want to use my 1302 thin slicer for (e.g. hard winter squash skins, crispy bacon, poultry bones, etc.). The 1902 is rated for chopping use including chicken bones, ribs, etc. Not a heavy bone chopper for large, dense bones, but it's way thicker and heavier than a 1302 (300g), and it's actually thicker than my grandmother's old American-made cleaver for butchering chickens (her dad, my great grandfather, was a butcher and she kept his old chicken cleaver and his smooth(ish) steel honing rod). Even after thinning the front two thirds of the blade behind the edge I still won't hesitate to take this to any tougher job that I have (I don't have any serious bone chopping to do, e.g. larger pork or beef bones). So I'm wondering if the CCK 1912 (or the well know 1303) would be a better / more accurate example of a small slicer?
Also, I believe the CCK large slicers (110x series) are actually a touch thinner than the 130x series (not thicker as you stated above). The old 1103 I picked up a few months ago is actually the thinnest cleaver I've ever held (230 X 110, 350g), and I've seen mention elsewhere online that the 110x series are thinner than the 130x series as well.
Thanks for creating such a great resource! I hope my comments here can be helpful in making this resource as accurate as possible.