his razor is a mystery. I've searched online and also for a patent, but can't find anything.
It's aluminium, so pretty light. The head is a differential and the two sides have different "scallops" which indicates what side you are using. The side with the fine scallops is the milder side.
It's a three piece and on the underside of the baseplate it has Weldon on one side and TWO IN ONE and PAT.ANM. I've not been able to find any patent on it.
The handle looks very "Swing Like" and it has been mentioned on;ine that it comes from Sweden. It has no lather holes and looks similar to a Merkur Progress - but without the adjustment.

If anyone has any info on this little mystery please CONTACT ME.

Pictures to follow

How does it shave?
It's not a BBS razor for me.
The mild side is ..... Mild, actually very mild and the more aggressive side it just eases into the medium effeciency range.