Ed Boyles's review of the Modern-era 6464 Boxcar Series are in the following OGR Magazines:
Aug. - Sept. 2015, pg. 75, (1st. three sets), (see also Dec. 1993. pg. 99),
Oct. - Nov. 2015, pg. 73, (next four sets),
and Dec. 2015, pg. 71, (last three set "and a surprise").
Thanks Ed for your Collector's Gallery's over the years! Eric Weiss
Thanks to my handy Digital Subscription, I went back and read Ed's Collector's Gallery articles on the 6464 remakes. Interesting reading.
Never knew about the B&O Sentinel Service boxcar being so highly prized (cited in the first of the three articles).