1920s to 1930s Caterpillar Brochures-More information requested

I tried to post on the ACME group on facebook, for some reason the moderator wouldn't approve and remove my posts. I left that group. I am extremely frustrated with whoever runs that group.

I would like to know which items are the rarest.

I would say all are rare to find, seem like good condition as well

They become more rare every day. So many unexpected things happen, and damage what we have stored away. At this time in history many have no interest in storing paper documents. So think critically about saving them for future generations, as many will not care. And no one knows how many more days they have, as the higher powers have shown me in the last weeks.

Or if the question was more which is worth more advertise them widely and have an auction. But in any regarded they all look to be in good condition for being 75 to 100 years old.