1) Fourteen P.J. O'Hare Newark production "cylinder" style micrometer sight adjustment tools, nickel finished brass construction with brass adjustment knobs. Two are equipped with suspension chains, and 4 have extra inscriptions ("ZILL", "R.V.T.", "U.S.C.G. 68" and "A.J. KOLAR/CHICAGO"). 2) Two "cylinder" style micrometer sight adjustment tools, brass construction with no makers markings. 3) P.J. O'Hare "ENGLAND" marked micrometer sight adjustment tool. "rectangular" profile with nickel finish and a brass knob. 4) Nickel finished muzzle/front sight protector, marked "MADE IN ENGLAND/crossed rifles/AGP/FOR P.J. O'HARE" on the front.

1) Very fine overall, with some spotting and finish loss. 7 have frozen knobs, the remainder are mechanically good. 2) Very fine, with a deep brass patina and mild handling marks overall. Both are in good mechanical order. 3) Very fine, with 80% nickel and well aged brass. Knob frozen. 4) Very fine, with strong finish overall and well aged brass in the exposed areas.