Landstroms Black Hills Gold Earrings/Reduced

Black Hills Gold earrings, cabochons of Banded cherry agate in BHG setting with french ear wires. Took awhile but found information to verify online, last pic., x/hallmark; like bhg, I inherited these from ANN, Moms friend, she was a dealer in Las Vegas 40+ years, that’s all I know about them. I googled, binged, Pinterest ect researching. In her jewelry case and then a shoe box for 4 years, no tarnishing or evidence of oxidation Last 2 Pic/ matching: 1940’s BHG earrings & Agate Pin on Pinterest I’m saying Montana Agate. From my lapidary experience. I keep searching online but cannot find the listing i found before. or any similar listings of BHG with these type cabochons. . I am finding LSP Co. I am assuming they were affiliated or company name change. or merger. There is no Hallmark on these. Thank you for your consideration. I have marked these down a few times and PM wont let me offer for a previous offer, so I am not making offers. But You are welcome to make me Your Offer. Thank you. I lowered the price 5/24