A cools set of vintage vector skulls (9 in total), with fine detail and one colored pencil stroke. These have that specific printer's look you would find in vintage books.
A tree. From The Encyclopedia of Practical Horticulture A Reference System of Commercial Horticulture; Editor in Chief GRANVILLE LOWTHER; copyright 1914 (therefore in public domain); http://books.google.com/books?id=A6oMAAAAYAAJ&pg=PA137&img=1&zoom=3&hl=en&sig=ACfU3U3siAuTE5T4WTQ16ZEl2y8IHr8VwA&ci=133%2C353%2C369%2C247&edge=0
Here's a set of free vectors for all. I made these as a special giveaway for making the TOP 24 in the DBH 10K Contest. Really appreciate all the votes so far and if you are so inclined I would def appreciate a couple more. Either way, use these for either personal or commercial projects, just don't resell the vectors. Thanks!