Really old pin cushions -- any info?

Hi - Found these beauties recently.

Here's what I know:
All silk, including the velvet ribbon
Cotton or possibly silk/cotton lace.
All embroidery is wool.
Filled with sand (perhaps the emery variety that sharpens pins) possibly mixed with straw.

Very large and very heavy, as you can see.

Your thoughts/input, please?
BothCushionsWithRuler.jpg LaceCushion_grams.jpg LaceCushionBottom.jpg LaceCushiondetails1.jpg LaceCushionTop.jpg RibbonCushion_oz.jpg RibbonCushion_ruffle+stitches.jpg RibbonCushionBottom.jpg RibbonCushionHoles.jpg RibbonCushionTop.jpg
 
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