Designed for mechanically minded frugal shavers, these gizmos have always been of interest to me. This one was in good shape, but the leather part of the triangular hone/strop part was ruined. I replaced the original hide with a piece of Kangaroo leather. I also resurfaced the ‘hones’ which are simple blocks of abrasive compound that appear to be black ferric oxide and green chromium oxide.
I have had some success with this contraption, but the results are not consistent, and I think most of that is due to my intermittent testing and the lack of consistently worn blades to test with.
Allegro offered many different models that has non-interchangable parts; each model was designed specifically for certain blades. This one works with the type we use today; back then they were referred to as “Gillette Style” blades. Other models are dedicated to Gem blades, wedge style Rolls and Wilkinson sets.
