I used ammonia to make a patina on my Kaweco Liliput. Here's the

Kaweco Liliput in copper, 3 months in. : r/fountainpens

Zen and the Art of Fountain Pen Maintenance — The Pen Addict

Kaweco Liliput Brass Fountain Pen

Patina Resist with Ammonia and Sharpie Pen (Tutorial) – Jewelry Making Journal

Kaweco Brass FP, speed up brass patina - Pen Turning and Making - The Fountain Pen Network

Kaweco Liliput fountain pen review – Ian Hedley

Copper Kaweco Lilliput before and after a little polishing : r/fountainpens

High end pens and writing instruments

I added paint to the mouth of my Gamera figure. Does it look any

I added paint to the mouth of my Gamera figure. Does it look any

Patina Resist with Ammonia and Sharpie Pen (Tutorial) – Jewelry Making Journal

Patina on Kaweco Brass Sport after about 1 year of use, I can't remember what it looked like new. : r/fountainpens

Copper with Ammonia + Salt Water = Beautiful Pen : r/fountainpens

Patina Resist with Ammonia and Sharpie Pen (Tutorial) – Jewelry Making Journal

A little while back i asked what i should with my puch maxi. here