The cut-square at the right can be from any of the following eight Haydarabad envelopes.
1. Haydarabad
1888 ½A
Sarkar I Asafiyyah die III (indicium size: 27mm×21mm) mustard yellow on white laid paper envelope (Deschl E3/Higgins and Gage B8) (13.8cm×8cm) of Deschl knife type 4 with pointed flap with seal type O embossed.
2.
ibid but with seal type Q embossed.
3.
ibid but with seal type S embossed.
4.
ibid but with seal type T embossed.
5. Haydarabad
1891 ½A
Sarkar I Asafiyyah die III mustard yellow on white laid paper envelope (Deschl E4/H&G B10) (13.7cm×7.9cm) of Deschl knife type 7 with tapered flap with seal type you embossed.
6.
ibid but without any seal on the flap.
7. Haydarabad
1891 ½A
Sarkar I Asafiyyah die III mustard yellow on white laid paper envelope (Deschl E4a/Higgins and Gage A2) (13.8cm×7.9cm) of Deschl knife type 8 with seal type you embossed.
8.
ibid but without any seal on the flap.
Here are the illlustrations of the flap seals for easy identification of the Haydarabad envelope types.
