| Issuer | Date | Desc | State | ||
| - | no image | Bhutan | 1/1/1997 | empty sheet (#50949) | incomplete |
| - | no image | Bhutan | 1/1/1997 | empty sheet (#50950) | incomplete |
| - | no image | Bhutan | 1/1/1997 | empty sheet (#50951) | incomplete |
| - | no image | Bhutan | 1/15/1997 | empty sheet (#50952) | incomplete |
| - | no image | Bhutan | 2/1/1997 | empty sheet (#50953) | incomplete |
| - | no image | Bhutan | 2/1/1997 | empty sheet (#50954) | incomplete |
| - | no image | Bhutan | 2/8/1997 | empty sheet (#50955) | incomplete |
| - | no image | Bhutan | 2/8/1997 | empty sheet (#50956) | incomplete |
| - | no image | Bhutan | 4/24/1997 | empty sheet (#50957) | incomplete |
| - | no image | Bhutan | 4/24/1997 | empty sheet (#50958) | incomplete |
| - | no image | Bhutan | 4/24/1997 | empty sheet (#50959) | incomplete |
| - | no image | Bhutan | 5/15/1997 | empty sheet (#50960) | incomplete |
| - | no image | Bhutan | 5/15/1997 | empty sheet (#50961) | incomplete |
| - | no image | Bhutan | 5/15/1997 | empty sheet (#50962) | incomplete |
| - | no image | Bhutan | 5/15/1997 | empty sheet (#50963) | incomplete |
| - | no image | Bhutan | 7/15/1997 | empty sheet (#50964) | incomplete |
| - | no image | Bhutan | 7/15/1997 | empty sheet (#50965) | incomplete |
| - | no image | Bhutan | 7/15/1997 | empty sheet (#50966) | incomplete |
| - | no image | Bhutan | 7/15/1997 | empty sheet (#50967) | incomplete |
| - | no image | Bhutan | 10/9/1997 | empty sheet (#50968) | incomplete |
| - | no image | Bhutan | 10/9/1997 | empty sheet (#50969) | incomplete |
| - | no image | Bhutan | 10/9/1997 | empty sheet (#50970) | incomplete |
| - | no image | Bhutan | 10/9/1997 | empty sheet (#50971) | incomplete |
| - | no image | Bhutan | 12/15/1997 | empty sheet (#50972) | incomplete |
| - | no image | Bhutan | 12/15/1997 | empty sheet (#50973) | incomplete |
| - | no image | Bhutan | 12/15/1997 | empty sheet (#50974) | incomplete |
| - | no image | Bhutan | 12/15/1997 | empty sheet (#50975) | incomplete |