Rubber track pad?

[Siemensma]

This was supposedly found near La Gleize in the Ardennes. It appears to me to be a rubber pad for on tracks of e.g. a Sdkfz 251. Examples of pads like this I find on the internet however differ from mine.
Dimensions: 9,5cm x 24cm

The following stamps are readable:
-Phoenix(?), Marburg
-1/43 with underneath 6
-W s01

Anyone able to identify this?
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[eagle100]

Correct marking is W601. Rubber pad from SdKfz 9 FAMO.

[zks.750]

That's right, W601 Sdkfz 9 Famo

[Siemensma]

Thanks for the help; is W601 a certain code which relates to the Sdkfz 9 Famo?

[zks.750]

Yeah,

for exemple, i have tow different manufacturer: Phoenix harburg and vorwerk