Linge & Forum,
The SS White Bayonet Frog with the purple ball portapee is an 84/98 SS LAH Frog.
1. Frog has the Fischer Berlin Stamp.
2. 1938 date.
3. I do not believe the material of the frog is leather. I do not know what it is made from.
4. Note the SS Property Stamp.
Richard K