| Maker | Valentine Metzler (17??-1833) |
| Dated/City | c.1830/ London |
| Key/Pitch (MHz) | 10 keys Clarinet in A |
| Descriptions | Boxwood, Ivory ferrules, Original grenadilla wood mouthpiece, Ten brass keys with flat, round key covers; springs attached to keys mounted in blocks. |
| Full Marking | ” METZLER / LONDON / 105 WARDOUR St. ” : bell, and upper joint |
| Additional Marking | ” METZLER / LONDON ” : barrel, middle joint, and one-piece lower joint |
| Length | 670 mm. / 602 mm. (without mouthpiece) |
| *Note: |