Gary May wrote:

Hey Chuck---
? That's one of the better FWW collections, "On Planes and Chisels", but 
probably quite expensive---certainly rare---the Robert Meadow article 
"Souping Up the Block Plane", sompin' like that, is Packed with Power, 
the power of knowledge, I mean.
? ? ? ? ? ? ? ? ? ? ? ? ? ? Hope I see you soon, yr pl gam
\snip

This may help

https://www.highlandwoodworking.com/fine-woodworking-on-planes-and-
chisels-40th-anniversary.aspx">https://www.highlandwoodworking.com/fine-
woodworking-on-planes-and-chisels-40th-anniversary.aspx

HTH,
Dave in Fairfax