Andrew, I think it's important to decide what constitute an open comb and a closed comb. Most of us are familiar with the Gillette Old Type and NEW from the 1920s-1930s and would accept that they are open comb. With the advent of some of the wonderful artisan razors coming out now, I think the waters might be slightly muddied. When I think of open vs. closed comb I think of my lather catchers. Here are two examples:
![[Image: H9YrxX5.jpg]](https://i.imgur.com/H9YrxX5.jpg)
This Gem lather catcher is clearly an open comb
![[Image: JAz8IT7.jpg]](https://i.imgur.com/JAz8IT7.jpg)
This Ever-Ready 1907 lather catcher is what I consider a true closed comb. The comb is easily recognizable but the combs are closed at the bottom.
I get fine shaves from both of these antique razors but definitely have a preference for the Ever-Ready.
Next is a modern take on the open/closed comb in the iKon Shavecraft 101.
![[Image: StuXMwr.jpg]](https://i.imgur.com/StuXMwr.jpg)
The open comb side of the iKon Shavecraft 101
![[Image: QpC29Yy.jpg]](https://i.imgur.com/QpC29Yy.jpg)
The closed comb side of the iKon Shavecraft 101
![[Image: 8sQx2oc.jpg]](https://i.imgur.com/8sQx2oc.jpg)
Looking down on the head of the iKon Shavecraft 101 with the open comb side clearly on the bottom.
I very much enjoy using the Shavecraft 101 and use both sides of the razor during my shave. Both sides are quite comfortable to use.
Personally, I think the
design of the comb is more important than whether or not the comb is open or closed, especially with open comb designs.
This is just my 2¢ and others may be more knowledgeable on the subject but I hope this helps.