George,
After looking at the CMSR on the soldier you found, I realized that I had likely seen this type of card before. It is, as most others are, a pre-printed card with blanks to be filled in. This one is specific to the 12th Louisiana, and only records the entries found on the original form for this particular soldier. In contrast, the CMSR for the Tennessee soldier that Anna found contains the original form. This sheet is in the form of an account ledger or spreadsheet, and contains a record of the deaths of 21 men from the regiment in the 1st quarter of 1863. It is much wider than long and required two microfilm shots to record the whole thing for the file. There are several columns across the sheet including for description, enlistment date and place, death date and place, etc. Pay and commutations due are listed as well as any charges the soldier owed to the government.