In a quilting magazine I once read - and bought into the idea - that all quilts should be signed and dated, along with the pattern name, fiber content, the city where it was sewn, by hand or machine, special care instructions; all possible info. The reason being that quilts are handed down thru generations and, since we're a mobile society, they can move from state to state/country. Even if it's sold at a garage sale, I feel it's important to have an informational label on it. Some day, tho we're not always so sure about some of our work today, it could be someone's entry on Antiques Road Show! If one feels this is all too wordy to fit on an attractive label, make the label a pocket, slipping the extra info inside - securely attached so it cannot be easily removed.
Having a logo - now, that's a good idea; hiding it is.....clever. It all sounds a wee bit egotistical but that piece took a lot of thought, love, work, $$$, etc.; it's worth crowing about.