Seller: rmtd58 (1,415) 100%, Location: New York, New York, Ships to: US, Item: 122246430251 Unusual pair of Russell & Erwin locksets dating from 1942 according to a NY Times article from 1981. Keys accompanying are marked Echo Range Finder Station. One box is marked LH, which I assume is left hand. I can’t tell if the other is right hand. Brass is in pristine condition. I had to open everything to photograph it so repackaging is not as neat as original. Everything seems to be included, although I don’t know if total number of screws is correct. Anyone has any idea as to what type of door these were used for, I would appreciate hearing from you.