RR Auction: Fine Autographs and Artifacts featuring Science and Technology

Original enameled cup made for the coronation of Czar Nicholas II and Czarina Alexandra Feodorovna on May 18, 1896, measuring 4? tall and 3.75? in dia

Vintage matte-finish 9.5 x 11 photo of the prince with a baby chimpanzee, signed and inscribed in fountain pen, "For Dear Mrs. Hale who loves a...

ALS signed “Diana, x,” one page both sides, 5.5 x 7, Kensington Palace letterhead, July 2, 1990. Letter to Bruce and Anita, in full: "What a wo...

Wonderful 1989 Christmas card embossed on the front with the Prince of Wales’s feathers and Order of the Garter motto and the Spencer family arms, mea

Very desirable 1992 Christmas card embossed on the front with the Prince of Wales’s feathers and Order of the Garter motto and the Spencer family arms

Christmas card embossed with the Prince of Wales’s feathers and Order of the Garter motto and the Spencer family arms, measuring 12 x 8 open, featurin

ALS signed “Grace de Monaco,” written on both sides of a 8.25 x 3.75 personal correspondence card, no date. Letter to "Mrs. Hale," in par...

ALS signed “Grace de Monaco,” written on both sides of a 5.25 x 3.75 royal correspondence card, no date. Letter to "Mrs. Hale," in full: &...

Royal Christmas and New Year's card from 1952, with a gilt-embossed crown on the front, measuring 13.5 x 8.5 open, featuring a charming photo of...

Partly-printed DS, signed “Victoria R. I.,” one page, 16 x 12, November 25, 1897. Queen Victoria appoints Arthur Mostyn Davies as "an Officer i...