Note: Thanks to recent research done by Volkmar Schorcht comparing Heckert paper patterns and decors, we now know that various examples that were originally thought to be PG  85/3710 were actually produced by Fritz Heckert.  While the decor design appears similar, the main difference in the Loetz examples is that the threads are combed and marved flat to the wall of the glass whereas the threads in the Heckert examples are slightly raised and appear as single bands. The examples shown below are often confused with PG 85/3710 but they were actually produced by Heckert. (See Heckert paper pattern no.107)