Lot retro 1950s vintage, woodworking drawing & plans for bookcase & dining counter

Lot of retro 1950s vintage DIY plans & patterns  for woodworkers with the original envelopes. These mid-century vintage plans include plans and drawings for building your own vintage bar or dining counter and drawing plans for building a "four piece bookcase". These are marked "Build it Yourself - Easi-Bild". The envelopes are marked 1951.

The envelope of plans for the bookshelf doesn't seem to have ever been opened, but the plans for the counter have been, used, several pieces have been cut out, the paper is marked up with pencil and there is a small burn mark through the paper. We're not sure if it is complete.