Here a Gillette open comb which was built millions of times, but only between 1931 and 1935. The construction is a little bit between Old-Type and New-Type, whereby it rather passes from shaving behaviour than New-Type.
I never seen one with a common bar, but it looks good. You need to open the head and show it's most unique feature, which is the blade guides being on the base plate and not on the cap. I really like the looks of the one with the holes in the cap, but this version is a better shaver.