Two sizes of steel karabiners are offered to be used for the abseil brake bars.
Shown in the 1954/1955 Sporthaus Schuster catalog is the steel karabiner break bars used for the ASMU Abseilkarabiner rappel system #5618. Also locking karabiner #5617. The abseil karabiner is shaped so one side is slightly smaller than the other so the steel brake bar will lock against the karabiner body. The Karabiner gate is also smaller.
Magra-Karabiner shown as #5621
1955 Sporthaus Schuster catalog. This catalog shows the addition of the Pierre Allain karabiner shown as #3917. But here the artist didn't just write "Pierre Allain" on the karabiner drawing shown, it also includes all of the lettering the karabiner came with. I believe the P.Allain karabiner shown is the version that has a rounded tube serving as the catch for the gate. This is what makes me think the artist that drew these drawings, drew the logos exactly as they were shown on the products of that time.
I created this ASMU piton length comparison chart in an attempt to figure out what pitons I have found and comparing it to what the manufacturer offered through the years. And yes, I am still confused with the many pitons I have in the museum which do not match up exactly with this chart created from the information from the catalogs.
Sporthaus Schuster 1961 catalog. This catalog definitely shows the round ASMU manufacturers mark on the pitons. What I have noticed is that the photo shown as #U 8613c is not a spatula piton but a pointed horizontal piton. I believe that this is a mistake put into the catalog. In this 1961 catalog the piton lengths are listed in the blade length, not the overall length of the piton. There are no rounded tip horizontal pitons shown. There are no vertical pointed ice ring pitons shown. I am not sure why they sold those two different type ice pitons in the first place since they did the exact same thing anyways. At some time the manufacturer discontinued the horizontal ice piton but added the U 8618 awesome pound in screw piton with ring.
ASMU locking carabiner shown in the listings with #U 8604
In this photo is the two sizes of each, ASMU Eishaken #U 8616, and the ASMU Eisringhaken #U 8617.
(Photo right) -ASMU boot heel crampon. Has the round ASMU manufacturers logo stamp.
From: Matthias Hofle
ASMU Eisschraube #U 8618
- 1961 ASMU catalog. Available in one size.
In the 1961 REI catalog it shows these two ice pitons and the text says they are Swiss. The catalog mentions that the ring version is available in two sizes. Hmmmm