Posted By:
davidcyclebackSolid ink for the printed text, like at the bottoms, is not proof of authenticity, but is a positive sign. The image parts should have dots, that's no problem.
Computer printers, photocopiers and Xeroxes don't have brown ink, so a brown reprint from them would be filled with tiny dots of many colors. If the ink is genuinely, solidly brown (or whatever it appears to be in the scans), that again is not proof of authenticity but is a positive sign. Would automatically rule out computer print et al.
As already noted, much faked toning on reprint signs and such resemble bad staining, like someone spilled tea on it or there was a flood in the basement. Genuine toning is typically smooth and evenish throughout the item. It's not something you can duplicate with Earl Gray and gravy.