If your 29-2 dates to 1979 or later, the correct case is the one with the revolver pointing to the right with the accessories contained in a compartment below the barrel. The first three digits of the s/n (assuming an N prefix) would help me identify the correct case.

The accessories are: screwdriver with a fluted aluminum handle and hollow ground tip, cotton swab, and aluminum cleaning rod with a brush attached (copper bristles).

Bill