I am looking for information about minelaying area near Danzig on Baltic Sea.
The code name of minelaying operations in this area was PRIVET.
I know that some squadrons from 1 and 5 Groups (and perhaps from 3 Group too) used to sent small forces of Lancasters to drop their mines there.
I wonder if in F541 Forms in some ORBs the precise alloted geographical position of dropped mines could be found?
That would be very helpful for me to determine the possible position of the mine barrier in the Danzig Bay.

Any help will be greatly appreciated.