Selection of the stamp by the letter "I-H-B"

I-H-B Clay Master Blom Johann Hotric - Leningrad - Initiatial "I-H-B"

I-H-B Claymo Master Blom Johann Henryk - Leningrad - initials I-H-B

I-H-B The stamp of Master Blom Johann Henrik - Leningrad - initials "I-H-B"