Went to the gun show in Winston-Salem today. Guy there had a like new 1975 N-prefix, blue, 8&3/8 in inch barrel Model 57(no dash) in a presentation case(i.e. nothing special) for $1295.
Also had a 17-8, the anodized blue 10 shot that appeared to be used for $895. Had a used 617 4" 10 shot...