Any Info On This One?

[buckkiller58]

Hello, Picked this old bird up the other day. Its a 7388 with black scales that i was assuming were bone but not so sure? Also i could not find another tang stamp as this one. all 3 blades are completely bill boarded and have plain tree logo on opposite side. Any idea on what era these stamps were done and what shield would be correct as a replacement? Still looking for info on the slimline one which tang has been double stamped and end bolster that seems a little rare? Thanks for any info, RED