the grooves are most likely roller lines. You can barely see them on the reverse, but they go in the same direction as the obverse
Collecting since 1972. Learning from then on
"Tell me and I forget. Teach me and I remember. Involve me and I learn." - Benjamin Franklin
My Dansco 7070 type set coin count: 37/76




My Dansco 8140,8143-8147 Washington-Quarter Albums



