I have three 1928 Instruction books.

One is version 5 and original, but it’s in poor condition due to some paper loss along the right side.  $10

The second is version 5 and an old reprint by Polyprints and it’s in mint condition.  $15

The third is version 3 (multi-disk clutch), a new reprint that is also mint and is printed on the same shiny paper as originals.  No name of the reprinter.   $20.

If interested, contact me for additional photos.  Shipping by Media Mail add $5.