Action figures usually start as "Hard Copies". These models
are used to create the molds, that are used to press out a run of "First
shots" or "Test shots". These test shots lack a date
stamp until the production run begins.
Pictured above is a test shot of Major Bludd. The figure is unpainted
and there is no date stamp.
Note that only the head, torso, and arms are depicted. Like many of
Hasbro's later action figures, the 1994 Major Bludd re-used another
existing mold for it's legs, so they're not pictured above.