Sorry if this is duplicate,just logged on for 1st time, and may have left this in wrong forum.
Do any of the great wise ones here know of source for recessed lens boards for the Super (Speed) Graphics?
Thanks in advance.
logan

As far as I know, there never was an OEM or third-party commercial recessed lensboard for the "Pacemaker" or "Super" models.

The consensus among participants in this board is that a recessed board is not needed; there was an illuminating discussion of the subject, some months back.

If you decide you need one anyway, the trick appears to be to cut a large aperture in a standard board, then attach a shallow open box to it.

The old Testrite 4x5 enlarger accepted a sunk mount for short focal length lenses that looks as though it could be bolted into a "Speed Graphic" lensboard without much fuss. I dare say similar widgets for other enlargers are to be found in junk boxes at old-line camera stores, and perhaps elsewhere.

The "outer" dimensions of the inner useable area, on a Super, that the box of a recessed lens board can fit into is 72mmx73mm making it a very tight fit for anything larger than a "00" shutter. If using 1/16 thick material for the sides of the box take 3.125mm off each dimension leaving 68mm x 70mm in which to mount the lens and at 10 to 12mm recess controls would be hard to operate if at all.