The Type Heritage Project [THP]:
Greenback, Marr c1877
The Type Heritage Project [THP]:
Greenback, MSJ 1885
The Type Heritage Project [THP]:
Greenback-02, MSJ 1885
The Type Heritage Project [THP]:
Greenback, Franklin 1889
The Type Heritage Project [THP]:
Greenback, MSJ 1892
The Type Heritage Project [THP]:
Greenback, Patent Specimen
The Type Heritage Project [THP]:
Greenback, Patent Affidavit