Bing & Grondahl Blue side plate with pierced border

Bing & Grondahl, blue side plate with pierced border. Can be used together with Seagull and Blue Tone. The factory mark shows, that these were made between 1970 and 1983. Decoration number 616.5. Factory first. Diameter 17.3 cm. Perfect condition with no chips, cracks or repairs. There are six (6) plates.