Verve was Norman Granz' flagship label, which he began by consolidating his previous labels, Clef, Down Home and Norgran, and reissuing the bulk of the earlier titles. On the 2000 series, Verve used an orange or a blue label prior to switching to black with "Verve Records, Inc" on the bottom. For the 8000 series, the label was black with silver print and "Verve Records, Inc" on the bottom from 1956 through 1960, when the label was sold to MGM.
Most of the early printings through approximately 8390 featured the outline of a trumpet player (courtesy of David Stone Martin and a carry-over from Clef and Norgran labels) in the upper left. Later mono albums had a large "T" design (that looks somewhat like a thumb tack) splitting the label in three.
Note: the trumpet player on a later number does not automatically mean that it is a first pressing. Granz apparently used whatever label was available to him at the time of pressing. Nonetheless, the "trumpet player labels" are highly sought after and usually commands a premium when there is a choice between the "T" label and the "trumpet player".
The 1000 series was for traditional jazz while the 2000 series was used primarily for "pop" oriented selections, although some jazz, especially vocals, found their way here. Early pressings of the 2000s have an orange label, replaced by a light blue label and then, finally, the familiar silver on black "T" label. The 4000 series was created for Ella Fitzgerald's protean output.
What each of the above label variations had in common (with the 8000s) was an "MGV" prefix and "Verve Records, Inc" along the bottom perimeter of the label. When select titles were remixed in stereo and issued on the 6000 series in late '59, an "MGVS" prefix was used.
When the label was purchased by MGM in 1960, most of the catalog was reissued with the monos designated with a "V" and the stereos with a "V6", the original 8000 series number being kept of both. The new parent company retained the original label (black with silver print) but "MGM Records - A Divison of Metro-Goldwyn-Mayer, Inc" was included on the bottom. A reissue series using a "VSP/VSPS" prefix was issued in the mid-'60s with most, if not all, of the stereo being rechanneled. From 1966 through 1971, MGM's Sunset address is also on the bottom. From 1972-75, a white label with blue MGM and Verve logos was used. White labe promos were issued.
From here.