I was making a tileset for a game when I thought to myself, "Mamma mia, I've never found a really good SMB1 SNES grass tileset online. How about I just submit the one I'm using?"
This tileset is an amalgamation of a couple of tilesets. It has the original SMB1 SNES tileset ripped by Murphmario (Spriters Resource), some semisolids and ground tiles made by SuperSledgeBro, and a semisolid made by Playgames169vg (Spriters Resource).