All About Pocket Knives

Got this pair of knives in today. Thes might be my oldest knives, but I'm a bit confused. In Goins guide, this tang stamp is shown under the T. Ellin & Co listing, and a date of 1850 is given for this stamp. However, when I look in the Goins guide under the James Barber name, the date given is 1894 to 1944. I'm inclined to think these are from 1850-ish due to the crude construction. Are any of you familiar with these knives? Also, how can I tell if handles are bone or stag? I'm thinking stag. Thanks!

Can't help you with the stamp, but pretty sure they are stag handles, no way to tell if they are for sure stag however, I'm going by just appearance. Terry

ERA was a brand of James Barber c1840
Acquired by Thomas Ellin & Co c1850, then sold to Joseph Elliot later.
Levines 4th Edition

Patch1

Thanks so much for the information. I have quite a few guide books, but not the Levine's 4th edition.