I bought this piece - I thought is was interesting and I found it on a less known bidding site - not expensive and I like the stamp. I do not have many letters/covers so this is what I figured out so far - hoping the experts could add some detail/info for my learning.
This letter was sent in 1869 - finally figured out SFL = Self Folded Letter from Puebla to Perambur a neighborhood located in the northern region of Chennai, Tamil Nadu, India.Are these SFL pretty collectable? would love any insight. Thank you, Nora.