I don't think they are charging for date of manufacture. On my DS I asked for it and other features and when the letter came back, it had it listed. On my recent DS I ask for the same info and it was not included. Beverly Haynes included a note stating that some of the info I requested was not in the ledger. I called and spoke to Paul and he said they put in the letter exactly what and how it is listed in the ledgers. Not all entries followed a strict outline as to what is included. The government ordered guns having basic info. This was 2 weeks ago. Ron