Antique Brass Key Collectible MUL Yale & Towne Key Set 2 WR SR

Set of two antique MUL brass keys, likely from the late 19th or early 20th century. These types of keys are often referred to as paracentric security keys, a design invented in the early 1890s by Yale & Towne. These keys are notable for: *Material: Made of tarnished brass, indicating their age. *Markings: One key is marked "WR" and "MADE IN USA," while the other is marked "SR". *Collectibility: Keys of this era and type are considered highly collectible. These keys have not been cleaned. Please view photos for details before purchasing. I am open to all reasonable offers. This was in my Dad’s collection of antique and vintage treasures for 35+ years. Not sure of the exact year these were made. I have a ton of vintage keys to go through as can be seen in the last photo. For Vintage, Antique and Collectible Treasures Visit: WiseOwlVintageShop.etsy.com IF INTERNATIONAL and IF INTERESTED IN THIS LISTING PLEASE SEND ME YOUR COUNTRY and ZIP CODE so that I could quote you available shipping options and cost, to see if shipping to your destination is feasible or not. Thank you. Please feel free to contact me with any further questions you may have. ❤ Thank you for your support! ❤