Um, the actions were the Pinnacle of Perfektion being a Grande Complication. One item that would clinch the deal would be the length of the frame. Lindner sourced frame forgings from Sauer, Triebel(remember H.A. Lindner married Hedwig Triebel on April 27th, 1877 so there was a tight & direct Triebel sourcing line) and possibly the Brothers Ritz. But the frame should be 56mm.....

My question lies with the period during the APUN, being where were the frame forgings sourced & how was the frame supplied to have the APUN applied?

Serbus,

Raimey
rse