Scans 7, 8 and 9 (7 and 8 are the same image) show Great Britain stamps from the reign of Queen Victoria (second half of 19th Century).
There's a rogue Italian one among them, and the larger red 'stamp' with straight-cut edges is in fact cut out of postal stationery - pre-paid envelopes with the 'stamp' already printed on. Someone cut it out and kept it.
There's no monetary value to any of them, but notice how a couple have perforations in the middle making up letters - these are called perfins and some people specifically collect them. And a couple of nice postmarks - again a few people collect these.
Most of the rest are USA - more postal stationery cut-outs among them, and one with a 'Commonwealth' overprint. Don't know much about US stamps, but I'd hang onto that one just for interest.
The France 10 centimes 'stamp' looks nice too. Not sure what it is.
Image six, red stamp with large 3 and multi ring cancel (next to photo of gentleman in the hat) looks to be German State Thurn and Taxis, Southern District. Either 1862 (imperforated) or 1865 or 1867 (rouletted). Difficult to tell from photo. Worth a few bucks in good condition, but yours looks a little tired.