TDC Slide Projector Headliner 300

TDC stands for Three Dimensional Company and was actually made by Bell and Howell.
This is the Headliner 300 with case and the slide holder. A nice thing about these is that no one collects them and please note this may be a time to start. This one was $15. It is hard to by a case as nice as the one this one came in for that price.
Word on the web s that this is from 1955. Seems about right although please do not use that as a source of solid information.
I do need to get some vintage slides. I can entertain my friends and family until they beg for mercy.
Anyone seen BB2 of late?