Proof Card 1964 John Fitzgerald Kennedy Question

Good morning to the whole forum.
I wanted to ask about the history of this card.
If there are multiples or unique ones.
They have been proposed to me but I don't know anything.
I thank and greet Simone

I do not know the specifics of your proof, but I am familiar with Lowey and his work (and signature). He designed quite a few things for the US Postal Service while alive. See my thread here
http://goscf.com/t/37288

Don

Thanks so much Don
for information Simone

Raymond Loewy was a major designer going back to the 1930s, with iconic streamlined industrial and commercial designs. Much is made of his locomotive and machinery designs, but the 1950s look of department store interiors were often also his work. So there's much of interest here for his fans, including a fingerprint (?!). Very nice!

I recall seeing a bunch of designs submitted for a JFK memorial stamp but never one in original essay form like this. There appeared to be an open competition for the design because there were so many different. I would have liked this one much better than the one actually issued, also a Raymond Loewy design(!).

I found this with the JFK portrait of the presidential set of LIBERIA
Every President is shown full face, however JFK's visage is bowed and looking down. I thought it very unusual.