Used stamps exchanges.

All CTOs except the two stamps at the lower right hand corner.
Am I too generous?

I received the same style of stamp, I had put 5 for the envelope, but it becomes sad to receive this kind of lot, 3 is a good note

CTO alias Cancelled-to-order:
Some countries, such as the emirates that later joined the United Arab Emirates, went further and printed the cancellation directly onto the stamp with the rest of the design. Many collectors do not consider these authentic stamps, and some catalogs categorize them separately.

Still better to get 100 CTOs than 100 worthless stamps from Holland, Belgium, Germany, Spain, etc., etc. from 1960 - 1990.

3 is correct I guess Toni. Rating 1 or 2...you know ;)

There is still not much effort ,