Wm and jg parker and keene cutlery

Picked these up and can't find much info or examples to compare. First is a wm and jg parker. Mother of pearl inlay lead insert and wedge. 13/16 iirc wedge.
Next is a Keene cutlery I believe 5/8.
Any info would be appreciated also approximate vintage I'm guessing 1850 1860 on the parker and later on the keene.https://uploads.tapatalk-cdn.com/201...bd76bc9ce3.jpghttps://uploads.tapatalk-cdn.com/201...dab2fdad31.jpghttps://uploads.tapatalk-cdn.com/201...d4ed2ca2ed.jpg
https://uploads.tapatalk-cdn.com/201...979a7a9076.jpg