see the examples of Baranov sword type Galovo.
in following link
http://truehistoryshop.com/byzantine-militarist-swords/
The sleeve of the sword of post 1 indeed seems reversed because the whiskers are not pointing towards the point.
Then the question of dating remains.
were there In the 11th century single-edged blades with such a pronounced fuller ?, or has this type Galovo been common for centuries?
best,