Hi Robert,
Glad I could help! I really don't know the answer regarding the IMME mark. I always thought it was the earliest mark, but I have seen some Pilots badges with J2's that have it also,
but I don't own one though . I guess it's possible they continued to use this stamp as well as the Jmme & Sohn stamp as time went on, but...... your guess is as good as mine.
ERIC
Glad I could help! I really don't know the answer regarding the IMME mark. I always thought it was the earliest mark, but I have seen some Pilots badges with J2's that have it also,
but I don't own one though . I guess it's possible they continued to use this stamp as well as the Jmme & Sohn stamp as time went on, but...... your guess is as good as mine.
ERIC
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