Help with tank parts - Oderfront 1945

[collani]

Hello,

please, could someone help me to identify this two (possible) tank/SdKfz. parts?
I have seen this parts in an area where 1945 some Panthers, Hetzers and russian tanks get lost.

Every part of the meter rod on the photos are 20 cm (7,88") long. The round piece is about 12 mm thick.

Thanks a lot for your help.

Regards,

collani