Very Rare Early Old Obsolete Buffalo & Susquehanna Railroad Solid Brass Padlock

Hi up for auction seldom offered this Buffalo & Susquehanna Railroad padlock selling as found condition uncleaned or polished, does show signs of age and use very dark patina top lever does show signs of probably hit with a hammer or tool bottom chain holder is frozen up does not swivel ( NO  KEY) There is a mark or name on the back side of lever but would need cleaning for identification Ive learn to leave stuff alone because some like the original look while others nice a shinny polished look this could be both leave that up to you Ask any and all questions or information or additional photos before placing a bid or purchasing