Abracadabra.....
Could well be Czech as large quantities of the panel cut items originated there. Citrine, a common colour. Who made it, could be very difficult as many raffineries bought in blanks from elsewhere.
Nothing similar in Novy, and sadly don't yet have a copy of Lnenickova & Novy's, "Schranky Vuni: Ceske Toaletni Sklo".
regards,
Marcus