B400 -windscreen sealing - which one?

[Bela]

The sealing of the windscreen is hard and has cracks.

In the spare list I found some parts.

1. Windscreen Sealing Rubber E 5620/R117 Item1 10ft
2. Windscreen Tabular Sealing Rubber Item2 10ft
3. Glazing Rubber 2" wide x 1/16" thickness x 6'6" long

I guess the last time of renewing was round about 1990.

The body is 236. In the WSM there is a change from sealing strip tabular to sealing strip external from #203 and the drawing looks like there are different clamps to hold the windscreen frame to the wood frame. But the sealing in my car looks like the tubular one. An evidence of a possible wrong part is a crack in the lower corner of the left screen.

Are the clamps part of the windscreen frame? Does the sealing depend on windscreen frame? I can't find the frame as a part or spare.

Are there really different windscreen farmes?

If yes - How can I determine that I have the newer one but the wrong sealing?

How can the sealing rubber be longer than the glazing rubber if the split needs additional glazing rubber?