Asking for opinion on US stamp collectiong (Lots of pictures)

arturohillo

Hi. As the title says I would please like to ask for some opinions on the value of the collection I'll be posting pictures a head. I inherited a stamp collection from my great grandfather and the great majority were Mexican (I'm from Mexico), those are the ones I haven't been reading about, but from the US I haven't gotten a source to investigate about them so I would like to see if someone is generous enough to help me out.































Thanks a lot really, I really appreciate it
Arturo