I like my round boxed Swing's, but they are already shown above (...well except one of mine has a green bakelite case...mm)
I Do have some variations not shown above.
a travel razor, but open comb and box (and yes, the handle unscrews in the middle and fits inside):
a couple of closed comb with an ball end type handle:
These are different in that the one in front only has "Swing" on the handle, the other has "Swing on bottom and top top plate:
The next one has the same head ("Swing" on bottom and top), but a much nicer handle and different box: I tried to photograph the inside of the box, on the transparent insert it says "Gebruikte Swing Mesjes" . Dutch for "Used Swing Blades"
Last but not least:
The same as the one EFSK started the thread, but with closed comb. The bottom plate of this one is also different from the others, it has a thicker middle part.
In line with Richard's remark that they aimed for the Dutch marked or were even taken over by some dutch, all except the travel razor are marked with "Roestvrij" (lit. "Stainless") on the razor, so definitely for the dutch market.
To use "stainless" or "roestvrij" for brass today sounds somewhat silly ... mmm