if any of you guys ever collected stamps and have a stamp book from long back. This could be gold. There are collectors willing to pay high dollars for interesting historial stamps (yes bangladeshi stamps has value even if they they are marked in an envelop). My brother used to collect stamps when he was a young and that was some 25 to 30 years ago and he had some really cool, rare and unused stamps. He had close to thousand.. But someone stole his stamp book.
If any of you collected it... look into it