Herma Socket Set (Henfield BN5)

It's a German made socket set, metric, A/F and BSW?BSF.
10 mm to 22 mm: 3/8" A/F to 1" A/F and 1/8" BSW to 3/4" BSW.
The 1/4 BSW has a different size socket in its place.
There is rust from storage at the drive ends of the sockets and elsewhere.
One of the hinges on the box has rusted solid.
The ratchet is the knock through type and works fine.
Too nice to chuck out.