1899 or 1900 Luger

[Nickhouseh]

To me, it looks like the same “T” There is on the inside of the trigger and under the chamber area. But it is not completely clear.

Under the toggle has inscription. Per Aarron Davis’s book it looks like Landwher unit marking - instead of a serial number -

This is all why I’m so puzzled.

But the single “2” is printed on most parts that have anything on them