P-38 CYQ year of manufacture and month!

Hi from Australia. I am hoping some one out there may be able to give me the production year and month of a CYQ Spreewerke P-38. I know they did not date them like Walther and Mauser. The number is 1***i .Now from what I can work out from the facts and figures I have read, Spreewerke started production in December 1943 and made roughly 20,000 pistols a month. I have figured that the (i) block was made in April or May of 1944.Can anyone out there tell me if I am correct or the correct year and month for the production of the (i) block.

Itâ??s in excellent condition with a much better finish to it than some Spreewerke P-38 with little machining marks. Itâ??s a pity that a lot of collectors do not favor the Spreewerke P-38â??s as much as the Walther and Mauser oneâ??s. I have owned both Walther and Mauser P-38â??s and have some mixed feeling on both of them and figure most people only go for the name of Walther and Mauser. I have seen some real shocking Walther and Mauser P-38â??s in my time and it was not due to usage, just bad production (pop them out as quick as you can!).