Whoever, not being lawfully entitled thereto, uses, exhibits, or attempts to use or exhibit, or, with intent unlawfully to use the same, receives or possesses any certificate, license, or document issued to vessels, or officers or seamen by any officer or employee of the United States authorized by law to issue the same; or

Whoever, without authority, alters or attempts to alter any such certificate, license, or document by addition, interpolation, deletion, or erasure; or

Whoever forges, counterfeits, or steals, or attempts to forge, counterfeit, or steal, any such certificate, license, or document; or unlawfully possesses or knowingly uses any such altered, changed, forged, counterfeit, or stolen certificate, license, or document; or

Whoever, without authority, prints or manufactures any blank form of such certificate, license, or document, or