Personally, I wouldn't even recognise it as a Latin character. I wonder who came up with it, why and when? Just has a quick look on the brewery's website. And there's a photo of a railway carriage with the "L" written in a very similar way. So it looks like the weird letter predates WW I.
The brewery has had an interesting life over the last 60 years. Before WW II, it was run by the Scheller family. It was partially nationalised in 1959, then full nationalised in 1972. (The takeover of lots of middle-sized family firms in that year, under orders from the Soviets, is what did for the DDR economy.) Returned to the Scheller family in 1993, it was sold on to Holsten in 2003, who in turn sold it to Carlsberg. Threatened with closure, the brewery was puchased by the Lohbecks, a husband and wife team, in 2006.
They currently brew a pretty wide range of beers:
|Landskron Beers 2017|
Anyway, here are some of their pretty labels: