My understanding is this: Many years ago when Roy Jinks was furnishing info to the ATF regarding production dates for S&Ws vs. the before or after 1/1/99 date in order for the ATF to say which guns were antiques and which guns were not, etc. , he found records that indicated all the frames for the .44DAs were forged and stored for future production before 1/1/99, therefor all .44DAs are classified as antiques by the ATF. To answer Doc's question above re:" 03 Feb. 1897" If the production log shows that date for a specific serial number, I interpret it to mean that a forged frame was taken from storage, milled, polished and serial numbered and used to assemble a complete .44DA and if the Floor Foreman's notes show that date for that serial numbered .44DA, that's the date the gun was considered to be "made" and ready for inventory in the vault, and the Floor Foreman got paid for a completed gun. The build would be because the Floor Foreman had received an order from marketing to build a batch of guns, usually 25 to perhaps as large as 300, blue or plated. The build might not be in consecutive calendar dates but spaced over a time period of several months, as the logs show gaps in dates that guns were completed, probably because of slow sales. Hope that helps. Ed.