Detail embossing and a price value. The CD 154 between the spool and the plum CD 162 and is the one I'm cataloging. The color is a little more of a bluish color but not a delft blue. (F-Skirt) AISLATRON / INDUSTRIA ARGENTINA (R-Skirt) CRISTALERIAS / VIDRART SA / 37 {and words the side of the rear skirt} ENTeL A17 This is one of two foreign insulators I have so I really don't want to spend the money on a foreign price guide. Value about $50.