Located in Virginia. Right treadle = wind; Left treadle = swell. Base Damper stop knob at the Bass end of case front operates split doubled swell shade to accentuate treble (see Myers, A.C., 2015, Some Swell Ideas. Reed Organ Society Quarterly 34(2): 17-27.).
Looks exactly like a “Perfect Melodeon”, but lacks that escutcheon printed into flap valves, which appear to be original. Ivory keys with round fronts.
Key riser (nameboard) stencilled in gold: “Base Damper // Pat’d July 8, 1856”;.
In pencil on baffle--":Burditt tuner”