Vintage Clear Glass Spice Bottles with Cork Lids and Metal Rack

vintage set of 7 clear glass bottles with domed cork lids complete with gray / silver metal rack, which spins for easy storage the bottles are held by the neck and are stored suspended I don't know exactly what the original purpose was for these bottles ~ they would work as spice storage, or they may have some scientific / lab purpose bottles are marked GA0 ML # ~ 2 #3, 2 #5, 2 #6, 1 #90 in fair vintage condition ~ stand has some minor corrosion ~ stand is a little bit wonky, but appears to be intact ~ one cork is missing its dome (pictured) measurements: bottles ~ approx 6.5" tall, approx 1.25" diameter stand ~ approx 12" tall, approx 5.25" base