Scanning

Smithsonian National Postal Museum’s curator took a look at the letters and its content. He scanned the handwriting and also the type of ink used in it. The man had his expertise in postage stamps. That is why he focused more on the different ink stamps on the envelope. After all the scanning, he confirmed that the letter was authentic. But still, one thing was not clear as to who had sent this letter to postmaster. Still, there was no explanation for this question.