These are the Central Asia–Pre-1899 Maps. Click to download.

1853 Sea of Aral Size: 516K
1865 Kurdistan Size: 2.2M
1870 Central Asia Size: 340K
1873 Seistan Size: 588K
1875 Amu Darya Size: 240K
1876 Khorassan Size: 3.2M
1878 Central Asia Size: 4.6M
1880 Mount Siazgar Size: 748K
1880 Pishin Valley Size: 1.5M
1884 The Pamir Size: 1.7M