This is the first time I've posted to the listserve, hope I'm doing it correctly. I'd like to buy a proportional divider and have found the Weems and Plath 4548 online, is this the best one to purchase? I would also like to get a plexi grid, and see directions for making them in the Guild Handbook of Scientific Illustration, but was wondering if anyone manufactures these? I'd appreciate any information.

Thanks

Trudy Gerlach

Wyalusing, PA