Hi Gutzer, thank you very much for your comment.
I will show in one of the next posts with another peace of wood how it works with water pencils.
Honestly I don't know, which metal parts you mean.
- The belt containers were airbrushed black (Vallejo air 71.057). Afterwards I made a dry brush with Mr Metal Color Alminume (218). However, the color was already dry in the vessel. That makes life easier.

- Quite the same with the fuel tank. Airbrushed in black and drybrushed with Mr Metal Color brass (219), also dry in the vessel.
- The hinge of the flap has been painted with a brush. I used a mixture of Vallejo air gun metal (71.072) and Vallejo air black (71.057). Typically a drop of each and mix it for the desired darkness. Very easy to use with a small paint brush. The same I used for the foot "bowls". I don't know the correct name, sorry.
- For small nails in the wood I used a very soft 9B pencil, which is in fact pure graphite.
Regarding the Benz Patent Motorwagen 1886. Yes, you are right, that is the ICM kit 24040. I made a (German) build log
https://community.revell.de/viewtopic.php?t=9243. If there are questions regarding details, please ask/PN me. So why don't deviate from aircrafts for some weeks

. I built it within 3 months and it was a lot of fun.
Best whishes for your DFW C.V late

Kind Regards
Rafael