mod vintage crackle glass candle shades, rustic amber glass hurricane shade set

Set of four 1970s vintage amber crackle glass hurricane shades, not perfectly identical as these are hand crafted, hand blown glass. They're made to hold a pillar candle, or use on rustic candle holders, sconces, or a chandelier.

They're all in good condition, and all similarly sized. These measure about 7" tall x 3" across the fitter ends. These might be Blenko, or maybe Mexican art glass? No marks or labels, so I'm not sure!