The model #72-BG bass (left) was new for 1962, replacing the #71-BG.  This bass was made from maple, with a clear hand-rubbed finish, with a 25 1/8" short scale maple neck with rosewood fingerboard.  Electronics consisted of two AP-4 pickups with adjustable pole pieces, and volume and tone controls for each, and a 3-way pickup selector.

Other features included a bone nut, cast metal bridge and tailpiece and plastic pickguard.

The model #72-BG sold for $125.00, and the model #82-BG, which was the same as the #72-BG, except for non-adjustable pickups, sold for $105.00.  

The model #4-BS (right) was the same as 1961.  The features were the same as the #72-BG bass and the #3-SGB Spanish guitar (which is what Carvin called electric guitars in those days).  Each neck had single volume/tone controls, and a 3-way pickup selector to select the bass pickup or either of the guitar pickups.

The #4-BS sold for $229.90, and the #5-BS (without adjustable pickups) sold for $199.90.