Fig.1: Ice hockey skates, 1st quarter 20th century
The forefoot is fastened athwart by means of a screwing mechanism. Although it fails it is likely that there have been a similar mechanism for the heel.
Manufacturer: Johann Peter Becker Junior, Remscheid (GER)
Mark:

Technical data:
total length x height: 24 x 5.8 cm;
platform: length x width x height: 21 x 5.5 x 5.8 cm;
blade: height x thickness: 20 x 5 mm;
weight: 320 g.

Fig.2: Ice hockey skates, 2nd quarter 20th century
Both forefoot and heel can be fastened athwart by means of screwing mechanisms.
Manufacturer: Polar-Werke, Remscheid (GER)
Model : Comtesse
Mark:

Technical data:
total length x height: 25 x 4.4 cm;
platform: length x width x height: 22 x 5.5 x 4.3 cm;
blade: height x thickness: 15 x 5.5 mm;
weight: 410 g.