This is a plain and simple model of a steamboat roughly fashioned in wood by the hand of Abraham Lincoln.

It bears date 1849, when the inventor was known simply as a successful lawyer and rising politician of Central Illinois.
Neither his practice nor his politics took up so much of his time as to prevent him from giving some attention to contrivances which he hoped might be of benefit to the world and of profit to himself.

The design of this invention is suggestive of one phase of Abraham Lincoln's early life, when he went up and down the Mississippi as a flatboatman and became familiar with some of the dangers and inconveniences attending the navigation of the western rivers.

It is an attempt to make it an easy matter to transport vessels over shoals and snags and 'sawyers.' The main idea is that of an apparatus resembling a noiseless bellows placed on each side of the hull of the craft just below the water line and worked by an odd but not complicated system of ropes, valves, and pulleys.

When the keel of the vessel grates against the sand or obstruction these bellows are to be filled with air, and thus buoyed up the ship is expected to float lightly and gayly over the shoal which would otherwise have proved a serious interruption to her voyage.