| Maker | Charles Nicholson (1795-1837) |
| Dated/City | c.1820 / London |
| Key/Pitch (MHz) | *6 keys Clarinet in C / A= n/a MHz |
| Descriptions | Boxwood, Ivory ferrules, Original grenadilla wood mouthpiece, Six silver keys with flat, round key covers; springs attached to keys mounted in blocks. |
| Full Marking | ” NICHOLSON / LONDON / C ” : barrel, upper joint, and bell |
| Additional Marking | ” NICHOLSON / LONDON ” : middle joint, lower joint |
| Length | 588 mm. / 533 mm. (without mouthpiece) |
| *Note: | probably made by Prowse, London |
