Looks to be iron with round brass front. Great patina as seen in pictures. Surface rust on iron. The brass front will polish up nicely if wanted. See pictures.
3 5/8" tall when closed and 2 5/8" wide.
IF ANYONE KNOWS THE SPECIFIC INFO ON THIS AND WOULD LIKE TO SHARE PLEASE DO. This may be worth more than I am asking!
Let me know if you have questions.