Thread: H. Boker Age Question

This question came up in a different thread about ebay razors, but I didn't recieve any answers, so I decided to do some investigating on my own. I came across the history of H. Boker, from the Boker website:

Böker - Your Knife Made In Solingen

Now, my question: The attached photos picture a Boker razor I just grabbed from ebay for $30, but without the tree logo. Does anyone have any idea what the significance of this is?

My thought is that the razor predates the logo, but I'm no expert and that just what I think is most likely. Any tips from experts would be greatly appreciated!

Also, the below guide is helpful for dating a Boker.