3.75" x 3.75" lensboards?

[Joe Nagy]

Hi, first time caller long time listener...er reader. I just got a Nagaoka 4x5 that came with an Ektar lens on a 3.75" x 3.75" board that reads TOYO-VIEW on th e back.

I'm wondering if anyone might have a source (besides me getting off my lazy rear to make a few) for these boards as I am looking for other lenses to augment the 203mm Ektar?

Thanks in advance!

[M.]

Nagaoka 4x5 (except for very early ones) use Technika lens boards.