... cant help but to think, what if this is it? so yeah im Always hopeful, and so are you and you... where will the fun of stamp collecting be if we never Always hope to find something Rare.
It is fine if treasure hunting is what flips your switch, we support everyone here regardless of their collecting motivation.
But many of us do not collect in hopes of finding a rarity because we understand that we will never find a 613. And since finding a rarity is something that very few people will ever experience, we like to encourage attributes that we know the hobby can deliver for everyone. Attributes like learning history, other cultures, art, etc.
Unsolicited Suggestion: if you want to get opinions on a possible 613, try posting higher resolution images (scans) of both front and back and the results of whatever discovery you have already completed.