Collected by my family approximately 50 years ago and stored in a stamp stockbook ever since. I do not know the source or country of origin. Please refer to the photos for details. I haven't counted the exact number, but there should be about 250 stamps. Stamps that are stuck to the sheet and difficult to remove have been left as is. The first half is roughly categorized by genre, and the second half is unclassified. There is yellowing and staining due to aging over many years. I will ship this stockbook as is (without a cover). Please understand.