Vintage West German Travel Clock, 2 Winding Keys UNTESTED

Vintage West German Travel Clock, 2 Winding Keys UNTESTED Brown outer casing with gold-toned trim. Moderate scuffing. Initials written on bottom and inside. Wind up back with 2 keys. Bottom brown casing of clock is slightly loose and can pop off if you open the case incorrectly. UNTESTED. I don't know how to wind these and won't try..