Here's what I found on the Kalmbach index search: Looks like Jan 1992 N scale
An On3 McGiffert Loader - an adverture in styrene
by Merv Johnson
from Timber Times December 2002 p. 46
loader log logging mcgiffert O on3
A Western Swing Boom McGiffert - Building an HO scale model
by Ronald L. Wolters
from Timber Times May 2001 p. 20
logging mcgiffert
Washington Iron Works "McGiffert"
from Tall Timber Short Lines August 1997 p. 17
loader log mcgiffert prototype
Logging: McGiffert Loader
by James Hauff
from N Scale January 1992 p. 34
loader log mcgiffert
Brooks-Scanlon's diesel McGiffert's
by Martin E. Hansen
from Timberbeast December 1986 p. 18
diesel loader log mcgiffert
WIW McGiffert Loader
from Tall Timber Short Lines July 1985 p. 16
loader logging mcgiffert prototype
An HO McGiffert
by Mader, Albert
from Narrow Gauge & Short Line Gazette January 1984 p. 66
loader log mcgiffert
Clyde McGifferts, Miscelaneous materials
from Timberbeast September 1983 p. 20
loader log mcgiffert prototype
McGiffert Log Loader
by Roy, Bill
from Narrow Gauge & Short Line Gazette September 1979 p. 52
loader log mcgiffert prototype
