RARE Walch Civil War era 12-shot Walch factory engraved revolver, SN 2

Rare Walch Civil War era 12-shot Walch factory engraved revolver with serial number 2 was patented by John Walch in 1859. This .36 caliber revolver uses superimposed chambers on 12-nipple cylinder–each chamber holding two shots; 12 shots is a lot of firepower before reloading. This most unique revolver has 2 hammers-side by side, and side by side pair of triggers which are offset when both cocked, so proper forward trigger would be pulled first, firing the top round. Chances of misfire of back charge first was a real threat, which is one reason this very rare revolver has few survivors. Only 200 thought made, few are ever offered. This revolver’s little brother was 10-shot .31 caliber and very popular among Civil War soldiers. Three thousand were thought contracted by Walch. John Walch contracted with two different manufacturers, so variance is noted in the dozen or so surviving specimens. The highest serial number we are aware of is 129. Serial number 2 has better quality of engraving than some others, barrel housing has script engraved address & patent on opposite sides: “WALCH FIRE ARMS-CO. / NEW-YORK” and “PATD FEBY. 8. 1859"
Revolver appears all original and matching, smooth gray patina, well fit checkered grips with moderate edge wear, clear engraving and SNs. This gun was reviewed by noted gun historian John Sexton.