I have a C. Tielsch & Co. bowl I picked up at an estate auction. It has the rarer [color=#0000FF]blue mark[/color] with the green “[color=#008000]Made in Germany[/color]” combination and is also marked with R 1 of 4 on it. Just wondering if anyone would know the value. Here are some pics:

[img size=150]https://kovels.com/media/kunena/attachments/legacy/images/DCP02459.jpg[/img]