| Issue | #551 |
| Published | April 1954 |
| Cover Price | 0.10 USD |
| Pages | 36 |
| Editing | ? |
| Notes | Indicia title is "BOZO, featuring Bozo the Capitol Clown, No. 551." Code number is BOZO O.S. #551-544. Copyright 1954 by Capitol Records Inc. |
| Characters | Bozo; Sparky |
| Pencils | Lee Hooper (painting) |
| Inks | Lee Hooper (painting) |
| Colors | Lee Hooper (painting) |
| Notes | Pencils, inks, and colors credits for this sequence from Alberto Becattini (May 14, 2007). |
| Characters | Bozo; Sparky |
| Synopsis | Bozo has the day off and decides he wants to see a circus. |
| Pencils | Lee Hooper |
| Inks | Lee Hooper |
| Notes | Inside front cover; black and white. Pencils and inks credits for this sequence from Alberto Becattini (May 14, 2007). |
| Characters | Bozo; Sparky; Professor I. Q. Calculas |
| Synopsis | Bozo takes a trip in a balloon to investigate strange objects which appear to be floating in the sky. He and Sparky get involved with a strange inventor who wants the pair to help him in his search for the "missing link." |
| Genre | fantasy |
| Pencils | Lee Hooper |
| Inks | Lee Hooper |
| Notes | Pencils and inks credits for this sequence from Alberto Becattini (May 14, 2007). |
| Characters | Bozo; Sparky; the Boss |
| Synopsis | The circus owner wants Bozo to do the lion-tamer act while their handler is away. |
| Pencils | Lee Hooper |
| Inks | Lee Hooper |
| Notes | Story continues on inside back cover in black and white and concludes on back cover in color. Pencils and inks credits for this sequence from Alberto Becattini (May 14, 2007). |