CD 120 Pat. Dec. 19. 1871 5 on the dome and "A" on the skirt . I bought this jewel at a garage sale today and it was a bit dirty and I asked how much...well a bit wasn't too bad now was it...25 cents..it was buried with some hemingray 42s,45s, and some porcelain insulators of newer vintage. The color is a bit dark here, but it is a ice yellow green..Don't you agree ? It has a little dinger on the groove and the back has a bb ding above the "A".....It was one of my best weekends for finding stuff even if not insulators. Bryer horses, aluminum 1950's dishes, made in Germany gitarr zither decorated with peacocks. Records, all kinds of eBay stuff... and more...One of my better finds for insulators in Rockford.. most of the time it is just average stuff.. aqua's, and clear stuff. Occasionally a Hemingray D-518 amber spool or a "B" CD 103 off a old house and maybe a hemingray 103 or aqua no. 3 spools...The few insulators noted to be from Rockford, Illinois.....thanks