I paid Larry Marcus, of Walden Venture Capital, a visit recently to talk about social and mobile apps. But we ended up talking mostly about the collection of old technology that he's curating in his San Francisco office.

Click through to the slides to see a small sampling of what he's acquired, including his first-ever charcoal rubbing of Steve Jobs' signature from the inside of an original Macintosh.

Larry also tried to get me to part with an old, historic portable computer (guess which one) I have sitting in my closet. I'm glad I didn't tell him about my original Palm Pilot.