| Issue | #51 |
| Published | April 1969 |
| Cover Price | 0.15 USD |
| Pages | 36 |
| Editing | ? |
| Characters | Fred Flintstone; Pebbles Flintstone |
| Characters | Fred Flintstone; Wilma Flintstone; Pebbles Flintstone |
| Synopsis | Pebbles finds a saber-toothed tiger as her new playmate. |
| Characters | Fred Flintstone; Wilma Flintstone; Barney Rubble; Betty Rubble |
| Synopsis | Fred has bought a new special bowling ball and gives Barney the good-luck piece. |
| Characters | Cave Kids; Izzy Einstone; Rocky Ranger; Floppy |
| Synopsis | Izzy has invented a rubber club. |
| Characters | Perry Gunnite; Swami Salami |
| Letters | typeset |
| Characters | Fred Flintstone; Wilma Flintstone; Barney Rubble; Betty Rubble; Perry Gunnite; Gimp; Gyp |
| Synopsis | Fred and Barney drive a stagecoach with a not so valuable cargo. |
| Genre | humor |