Original padding/insulation under floor mats?

[sl113newguy]

Somewhat recently purchased a 68 280SL, and still learning about the car.

Recently I found that moths (!) were starting to appear, and lo and behold found them enjoy the padding/insulation that is under the floor mats.   
I hadn't looked at this before, and am curious:

1. If under-floor-mat padding was original to these cars, or an owner would have added it later?

2. Regardless, I have removed the padding - it is partially disintegrated - but figure I should hang on to them after killing off the offending months (don't ask how my wife feels about the padding being in the freezer this week) as I want to keep everything that was original to the car with the car. Anyway, I was wondering if it was original, if there is "new" padding that owners use as replacement?

Thanks everyone!

[rwmastel]

Just curious, is this under carpet or rubber floor mats?

[sl113newguy]

These were under the floor mats

[rwmastel]

I'm asking the material of the floor mat - rubber or carpet?  I didn't know if early 280's still had rubber mats.

[sl113newguy]

Ahh, gotcha. I didn’t realize there were multiple kinds of floor mats. 
Mine look like carpet with some kind of coating on the back.

[rwmastel]

They probably changed mid-250SL when so many things changed.

Search this forum for "Cocomat", if you're unfamiliar with that company.

[badali]

Those are original pads under the mats.  Mine are still in the car and like new...

[john.mancini]

I agree, those are original. I've had them on many Pagodas over the years.

[Benz280]

For reference, under the drivers side their is a secondary mat below the accelerator.  Looks to be made by a company called Chadwick .   

[sl113newguy]

Thanks everyone. The original floor mats have a bit of a fade, but at some point an earlier owned added a couple of (Palm Fibre) Cocomats, which don't look too bad 

A question on Dynamat - when those are added and stuck to the floor of the vehicle, is it easily removable later (say if I want to remove it, the next owner in 50 years wants to remove it, etc.)? Or to later get it off does it involved removing paint, etc.?