Link to Wikipedia entry: Oswald Carcano

I like how the writer (or writers, Wikipedia being user submitted) distance the Carcano from the Mannlicher name.

From the article:

In March 1963, Lee Harvey Oswald, using the alias "A. Hidell", purchased by mail order a 6.5×52mm Carcano Model 91/38 infantry rifle (described by the President's Commission on the Assassination of President Kennedy as a "Mannlicher–Carcano") with a telescopic sight.[1]

Combined with:

After 1895, the Modello 91 used an en bloc ammunition clip similar (but not identical) to the Austrian Mannlicher ammunition clips, and hence the names of Mannlicher and Carcano came to be associated with the Oswald rifle; this included association with them by the Warren Commission.

Also from Wikipedia, the Carcano: Carcano

Excerpt:

Although this rifle is often called "Mannlicher–Carcano", especially in American parlance, neither that designation nor the name "Mauser–Parravicino" is correct. Its official designation in Italian is simply Modello 1891, or M91 ("il novantuno"). The magazine system uses en bloc charger clips which were originally developed and patented by Ferdinand Mannlicher, but the actual shape and design of the Carcano clip is derived from the German Model 1888 Commission Rifle.

Another, from militaryfactory.com: Article

Excerpt:

NOTE: The Carcano Modello 1891 is often (and incorrectly) identified generically as the "Mannlicher-Carcano" rifle. This is in reference to the weapon's origin laying in a Mauser-based Austro-Hungarian rifle design by Ferdinand von Mannlicher (it is noteworthy that many bolt-action rifles of the period utilized the excellent German Mauser action). Another known generic designation for the Model 1891 is as the "Mannlicher-Paravicino-Carcano".