* Pre-Matrix Unknowns

Here are four record with no labels. These are very old records, probably 1900-1902. They are very thick with rough edges. I believe they are lateral. The grooves are comparatively faint by 1910 standards, but they each play strong and clear. They are hard shellac records, not laminated records. They are similar to very early Victor/Monarch records I have seen. I am trying to determine when they were recorded.