Kromex Serving Set 4" polka dot glass, lid, & 2 silver chrome plates VTG 50s MCM

Kromex ? Hazel Atlas ? Serving Set  glass jar, lid, & 2 plates   EUC, excellent vintage condition.  some spots of tarnish and rust on the metal lid, pictured.  Vintage 1950s ? 60s ? Mid-Century Modern heavy bottomed glass textured bubbles, convex on the inside, smooth on the outside  chrome silver lid with yellow metal handle sits perfectly on top  looks like a little strawberry ^_^ maybe meant to be a small serving jar for preserves, caviar, sugar, ... ?  2 silver chrome plates,  (actual material content unknown)   one with a smaller indent perfectly fits the glass, and    the other with a larger indent, perfectly fits the lid shiny on the top brushed metal, matte on bottom  polka dot glass: height 4  width at top 3.75 width at bottom 2.25  lid: 2 height 4 width  plates: 6.25 diameter  questions? please ask!  grandma's collection shipping weight 2lb 8oz in 9x9x9 box