Date made
1914 - 1944Notes
1. Stevens Line Level, E. A. Stevens, Newton Falls. O. (Looks like an earlier No. 550). Pat Nov. 10, 1914.
2. Stevens Pocket Line Level No 550, Sand's Level & Tool Co. Detroit, 1927
3. Stevens Pocket Line Level No 552, Sand's Level & Tool Co. Detroit, 1927
4. Stevens Pocket Line Level No 555 (2), Sand's Level & Tool Co. Detroit
5. Stevens Pocket Line Level No 600 (2), Sand's Level & Tool Co. Detroit (1944)