The poll won't let me post more than one so I'll go with the oldest. JP Sauer und Sohn, 16ga round body back-action external hammergun, made approx. 1894. Fluid steel Krupp barrels, some metric number close to 30" length. Choked full and ridiculous, 65mm chambers so I roll-crimp short shells for it. Taking the old girl out for a couple rounds of skeet today, and sporting clays in 2 weeks. She gets a lot of attention at the range, she ain't pretty but she has class.
The poll also showed my vote as 'at least 75' when I selected '100 plus'... at least I think I did...must have forgot the meds today