Posted By:
andy beckerthey are popular with me 
seriously, s74's are pretty well collected by a few and others have a type for their collection.
i am a pretty hardcore s74-1 (white silks) collector.....but i only collect silks with the backing intact. my collection has an emphasis on rarer backs and unfolded silks.
the five different backs are (in order of scarcity...lowest to highest)
-old mill
-turkey red
-turkey red with frame
-red sun
-helmar
red sun is very tough and helmar is next to impossible. i know of three helmar silks.
white silks also come in three different color fronts.
black and red (maroon) are the most common. blue is the most difficult.
both white (s74-1) and colored (s74-2) were issued folded. i suppose s74-2 could be ironed out to appear to have never been folded. s74-1 in unfolded form is very difficult to find.
feel free to post or email me and i will try to answer any questions.