Looking for a survey

I am looking for the following property..

N/2 of the NE/4 of the NE/4 of survey 368 Block 1-A H&TC RR CO. survey

this is in Coke county of Texas

we just learned that we own the mineral rights.. last lease was probably 1976

apparently my mother received an offer to lease in 1985 but nothing was done

with it as far as we can tell

thank you

Joanna