loathar,
just click through to one of the companies and look for "samples" or "portfolio" in the header, I found tons of them, most were too modern for me, but some could be adapted.
Jay
C-415 Build: https://imageshack.com/a/tShC/1
Other builds: https://imageshack.com/my/albums
i have found a great place for logos that you can download and resize to your appropriate scales. we use this at work all the time ( a sign company), and i forgot about it until tonight. hopefully this may help anyone who might want to use it
bestbrandsoftheworld.com