For your consideration is this collection of Stanley, S.J. Sherman and unmarked bubble level circa 1853 and 1896. There are three levels in this collection with the first one showing Stanley construction with a patent date of June 23, 1896; The next shows S.J. Sherman, New York Patented July 19th, 1853, and the third is a unmarked brass and wooden bubble level. the condition of these levels is good with no obvious signs of damage and show wear consistent with their age and usage, and show good overall condition. The measurements of these levels are 1" x 5" x 3/4" to 1 3/4" x 3 1/4" x 3/4".