Thread: ID help

Good morning , first time for attaching pics . Used phone , not as clear but way smaller file size . The 2 stones opposite from the india that are drab green almost black were purchased when I first started to collect . One had a fish hook groove and this is where I cut off a slice . In retrospect I believe these are Thuringean . I paid a sinful price of a few dollars , literally . Almost threw them away . Those 2 and the India I bought in the States . I have several older man made stones I would like to research where and when they were made . I've been collecting for 8 years , I'm fascinated with natural stone's and picked up a few straight razor hones along the way . Just purchased an Arkansas stone in a brass holder that is dated April 26 1876 . This was a few months before the battle at the Little Bighorn . No cars , no electricity , no phones , dirt roads , no AC , no internet . A number of stones call for the use of whale oil . I'll settle for a thread to identifying my hones .