Based upon information available on the amazing website "seabean.com" I was able to determine that this pencil was likely made from a seed from the "Mucuna sloanei" species, or "Brown Hamburger Bean", and it possibly originated in Jamaica before finding its way north, ultimately ending up in a pencil factory.
Aikin Lambert & Co. was a New York based company that made, among other things, pen holders, high quality gold pens (nibs for both pen holders & eventually fountain pens), and mechanical pencils. They became a major supplier of gold nibs to the high-end Waterman pen company, who eventually took over Aikin Lambert & Co. in the early 1900's. An advertisement for Aikin Lambert & Co in Publisher's Weekly from 1878 includes an example of the sea bean pencils that they made at the time.
The mechanism in the pencil I have is of inferior quality to most Aikin Lambert pencils I have seen, suggesting that it is unlikely this pencil was made by them. However, it is a another nice example of the wide variety of natural materials that 19th century pencil makers utilized in the production of the novelty pencils that were so in demand during that period. In addition, the advertisement, combined with the details found on the seabean.com website, have enabled me to determine the approximate age of the pencil I have, along with the type of seed that was used in making it. The pencil is fairly small, just 1.5" closed, and 2.0" fully extended.