Need Assistance With This Washington 6 Cent Cover In Orange.

Hello
Between 1916-32, the Washington stamp, I thought the Washington design only goes up to 5 cents blue. Does anyone know what is the Scott Cat.# for this Cover?

I find this cover trying to express historical significance pertaining to President Abraham Lincoln. It first was cancelled on his birthday in Kentucky. On March 4th, was day Grant became 18th President, but he was selected Commander of Chief of Union Army by Lincoln in the month of March too. The middle cancellation is the day, President Lincoln was shot at Ford's Theatre.
Has anyone seen this cover before with similar cancellations across expressing Abraham Lincoln or is this unique?
Any information would be appreciated. Thank you

Just a guess, but Ralph may have mailed this cover (under other cover) to the three post offices.

I have no idea who the individual is at all. I purchased it from a paper collector who had a trove of mix materials. He didn't even know who the person was either. I was curious about the embossed 6 cent cover stamp. Does anyone know anything about that specific embossed stamp on cover?

The Paper collector admitted to me he bought it from estate sale in Philadelphia area, he had a large trove of mixed material and this was included in his box collection. I collect historical Lincoln Memorabilia as well as stamps.

original envelope is U529

Thank you everyone so very much for your assistance! Now, I can place it correctly in my Lincoln Mem. file.

This was a fad during the 1930s: collecting people's names based on Post Office names. Many collectors would try to find post offices that had their personal names and send for their postmarks. Another set of post offices often seen is Franklin, Delano, Roosevelt. The post offices might be in Alabama, Minnesota, and Missouri.

Minor point. If the original envelope was amber paper (which it could have been, the white paper of this issue being pretty consistently bone white), the Scott # would be U530.

Lioness:

I have not seen the cover before and can't add any info about its background, but the 1938 BLUE BOOK OF PHILATELY has a listing for Ralph A. Casner who then was living in Upper Darby, Pennsylvania. He was 54 in 1938 and listed his occupation as "Automotive Supervision." He belonged to several cover-related clubs and specialized in U.S. & Possessions, and B.N.A. covers (air, naval, first days, historical and classics), and collected Michigan precancels. I have one other cover addressed to him, a 1934 airmail first flight from Hilo, Hawaii. My guess is that he was a typical 1930s cover collector.

Don

I am so grateful for the additional research provided. It will assist with information for future reviews.
Thank you again!
Lioness2