Thank you "morninggents" for your pictures!!
The TCA on the finnish car is from solid (Billet) aluminium as they have been since it came to Finland from Boreham (??).
When reading the classification document there is a picture of a TCA in aluminium dated 1/4/71 with part nr. CD 26872 and looks like "morninggents" -> machined aluminium.
We are 2 buddies starting to build 2 RS1600 Group 2 (H1) here in Finland and would like to build them as they were built back in the days
Maybe it is too easy to buy "rally" parts
And it can be good to have proof of what kind of parts were used because there are lot of new stuff on the market, especially GR4 rally parts. We dont want to build a rallycar
There is not enough "building" pictures of the cars on the web so this is probably the best way to get some and information how they where built. We have just the Boreham Racing car there in Finland but plenty of Rally cars.