That is simply beautiful, inside and out!J. Hückel´s Söhne "Flexible" "Rauh" possibly later 1930s. The light weight Rauh / Rough finish mélange felt is fantastic. The hand is very soft with not much nap. The overall condition is great. I found this Soft Felt back in 2020.
KMK Klobouk Z Odborného Závodu
J. Hückel´s Söhne, Display Cards, 10 cm x 4 cm, possibly mid to later 1920s. I found these Disply Cards back in 2019,