preferred a horse-drawn vehicle throughout his administration, which led to his successor, william howard taft, to mobilize the white house fleet. he had an electric car, a gasoline powered car, and a steam powered car. from that time on, presidential transportation the vault quickly. the car behind us now is a 1939 lincoln model k, perhaps one of the most significant presidential vehicles in that it is the first car specifically modified for presidential use. when i say that, i don't mean armor, necessarily. notact, this car was armored at all when it was delivered to the white house. nor was it modified to be more luxurious or flashy. instead, it was modified for practical purposes. for example, the upholstery is thicker than it would be on a standard lincoln, because a lot of people were getting in and out of the car, putting a lot of where on the seat. this car is most often associated with frankly roosevelt, and it has a popular nickname, "sunshine special," which comes partially from roosevelt's preference to ride with the top down -- it is a convertible -- whenever weather permitted, bu

those other collections include some of the largest ones we have -- the woodrow wilson papers, william howard taft papers, teddy roosevelt papers. those are some of the largest we have. thousands of containers. hundreds of thousands of documents. they will get up there, and the library is committed to that. it will take time. >> over 120 years standards have changed in terms of authentication. verification. do you go back on the old ones to apply current standards to them, or once it is locked in it is locked in? jeff: if i understand you right, collecting policy evolved over the years. i think where as in the early 1900s we would take a collection -- we especially took collections of copies, which would be in private hands. i think the thought was that we will accept those photocopies with the thought that maybe somewhere down the line will get the original. that did happen in some cases. today we might apply a much more rigorous standard to taking copies of something. we want the originals. things could evolve that way. acquisitions are one of the most important tasks that the staff of the divis