Types of ib Kofod Larsen recliners  

Does anyone know the different types of recliners and recliners mechanisms used on ib Kofod Larsen's recliners?  I am specifically thinking of the recliner + ottomon.  As far as I can tell there are at least two kinds of brass handel-trigger mechanisms for the recliner and two design types for securing the webbing under the seat (one with groves for 45 clips and a second type of seat with 3 seperate chanels for the webbing to pass through). I have seen with and without the Selig button.  Does anyone have any information on these recliners?  Were both brass handeled mechanisms and seating designs of ib Kofod Larsen?   I believe one of the handels is a round ball with an axel-type mechanism that runs the length of the chair.  The second handel i have seen is more oval and the entire mechanism sits on only the right side of the chair.  I know there is also a third reclining mechanism that relies on pegs but no handel.   Any informaiton would be greatly appreciated.   thanks