On the iPad app. Select a forum and then Scroll up (pull down) to reveal the search box. There is an issue with the IPhone app. It no longer works to search within a specific forum. This will get fixed.
This was taken in Greece a few years ago. A vintage get together. Four Mercedes SL in this shot. They are such reliable cars. Took mine on a European tour a couple of years ago. It’s now in having a frame off restoration.