Saved picture from 2011 before i started DIY
Can recall XL and regular size carto's used to vape them in what was called an Acorn tank in 2 different sizes still have the red thingy that i used to cut off off portion of outer casing.
Still have some pictured below.
I somewhat miss the "Don" Megladon here pictured in short 18350 mode with sleeve not shown accepted 18650
sold it long ago and a madvapes kits mod that one would build have several still and learned to solder in a volt meter ah those were the days.
The e-liquid in bottle was called 555, RY4 not pictured was tobacco express brand but did vape Dekang brand as well back then.
Just took this blurry picture in a hurry -watching blackhawks game. ; )