Disraeli, Benjamin (1804-1881), British Prime Minister (1868, 1874-1886), autograph envelope signed as Prime Minister "Disraeli" and addressed in his hand to "Reverend the Principal the University Glasgow", mourning envelope, with British Nov. 16, 1874, with Hillhead 1874 receiving mark on reverse, Fine, with intact wax seal (Photo). Estimate 200 - 300 (Image)