| Maker | Thomas Prowse (17??-18??) |
| Dated/City | c.1830 / London |
| Key/Pitch (MHz) | 6 keys Clarinet in C / A= n/a MHz |
| Descriptions | Boxwood, Ivory ferrules, Original grenadilla wood mouthpiece, Six brass keys with flat, round key covers; springs attached to keys mounted in blocks. |
| Full Marking | ” T.Prowse (cursive) / Hanway Street (cursive) / London (cursive)” : upper joint, lower joint, and bell |
| Additional Marking | ” T.Prowse (cursive) / London (cursive) ” : mouthpiece, barrel, and middle joint |
| Length | 588 mm. / 533 mm. (without mouthpiece) |
| Note: |
