Panama, Mostly used. One volume mint and used accumulation of several hundred stamps organised chronologically from classics to mid-20th century, starting with imperf eagles followed by well over 150 map types with a good range of overprints incl 'AR Colon Colombia', wavy-line 'Republic de Panama' with double/inverted errors, surcharges with distinct possibilities, etc. Much more here to investigate including back of the the book material, and unlisted. (Image1)