This is a better photo of items posted previously, a CD 565.1 J. Stolle Niemen and a olive-golden-amber CD 470.1, weakly crown embossed IL.NS-95, about 3 3/4" x 3 3/4"; (95mm Dia), both from Poland.

I took this photo a couple of years ago, it was retrieved from my old home computer, just before it passed on to the great bit bucket in the center of the galaxy... The actual color of the JSN is less green than appears here. The embossing on the JSN reads as J. STOLLE ,, NIEMEN '' with a couple other seemingly random dots / periods.

The original posted photo is here: [id=92148339]

Compare this JSN to the one posted here: [id=180193415]

The J. Stolle Niemen is a predecessor of those cobalt blue "HEMAH" (Neman) and "C3H" insulators from Belarus. WWII, and Soviet Expansionism changed the map, borders moved, nations and names were changed...