Just gonna jump in here with three more: - Telegraph brevity codes (e.g. Bentley, Marconi) - Telex codes and various predecessors to ASCII (plus even what Tel

Just gonna jump in here with three more: - Telegraph brevity codes (e.g. Bentley, Marconi) - Telex codes and various predecessors to ASCII (plus even what Telex hardware looks like in a lot of cases) - Heraldry