I never saw before ELITE MASTER GRADING COMPANY. Check it out https://www.ebay.com/itm/1935-S-Pea...h=item286d684db5:g:oBcAAOSwySZb56ip:rk:3:pf:0
I love the sellers comments "Reason for selling is I purchased it by mistake, your gain!" "I listed it as uncertrified because E-Bay doesn't list this GRADING service."
My best guess is that this holder comes from a self slabber (a dealer grading their own inventory and selling them in these holders). It might be related to this: http://coinauctionshelp.com/ENGS_TPGS.html#.W-hkiaRMGEc
This is one of a large number of companies that use the old Numistrust slabs. Best known of the current crop is IGS, but I must have 20 different iterations of this in my bucket. Most of them are so bad they don't warrant an album or even a box. Edit: really bad typo