Steve; I checked that 1909 on GB, 112360A, and it has the 2nd type ejector and since the serial number is on the same half of the receiver, I think that confirms it. I also went back and double checked two 1903's, 1214xx and 121467 (my GH), and they both have the 1st type ejector.
This and the fact that we find no 1903's in with the 1909's suggest to me the possibilty that a block of numbers were set aside just for the 1909's and later production guns will have lower numbers than 1903's of the same production period. If this is the case then the estimated production based on serial numbers would already include the 1912 to 1915 production figures Rick has and they should not be added in again.
