Firewall sound insulation: Where does this part go?

[Bmachine]

On page 51/67:

07 Sound insulation 12/1968 11/1975 51481823438 $41.70

It looks like it goes on top of the firewall some place... Does anyone have a picture of it installed by any chance?

Thank you.

 

[Stevehose]

i think it goes inside the cabin behind the dash?

 

[aearch]

inside the firewall at the top

 

[Bmachine]

Thank you Steve and Alan.