Intermediate size box
I don't know if your father-in-law has built any boxes to hold medium-sized slabs (Exhibits, T201, T202, etc.) yet - there may be a market for those as well.
The dimensions for a SGC holder are 4"W x 7-1/4"H, and 4-1/4"W x 7-1/4"H for the PSA holder.
|