Scovill Peerless 290mm f3 Brass Lens
Petzval lens design with rack and pinion, made around 1875
Easily cover 8x10 format, might be cover 11x14 at portrait distance

Optic is clean without fog and fungus
Comes with original flange
Weight 2kg, Serial number 322
 
IDR 30 million or USD 2000