I exchange according to scans and catalogue values in Scott catalogue. Difficult material from difficult countries is only available for similar material.
All stamps are in photos of JPEG format.
You can choose a continent or a theme from the left in order to see my exchange stock.
If you want to see directory listing of all images of stamps for exchange, you can use this link
There is a number of high catalogue value classic and colonial material presented in the scans. For these I need high value stamps from the below-mentioned list