Watch in the form of a skull, ca. Movement by Isaac Penard (Swiss, Case and dial: silver, partly nielloed, with a single silver hand; Movement: gilded brass and steel; back plate of movement Source: Isaac Penard: Watch in the form of a skull
Relationship between life and death. inside, outside: No information about this but it is two different photographs put together to create a half skull, half face image. That heavily relates to the theme of inside, outside and in between.