More film for 10x15, this time from GDR.

Dead tree.
At internet I saw it could be developed as ASA 50 HC110 Dilution E (1+47), I shot it as ASA 40 and it turned out way overexposed but most likely overdeveloped, frames of negative are really grey... It could be fog for old negative but as someone here said the more develop time the more fog so I will try next time 8min same dilution and keeping ASA 40.
Any suggestion is welcome and thank you for watching,
Alex