I have recently spoken with someone who suggested that in my Scout 249 rebuild that I need a rear fender with an indentation to compensate for the chain guard. I thought I had the right one which has no indentation.
Lo and behold I search the internet, my Hatfield and other texts, and there on page 170 of the New Restoration Manual is an Arrow with the indented type of rear fender. I thought I had solved the issue, then began comparing this with Scout online photos against alleged period correct restorations and found the same indented fender on the rear of Scout 249 motorcycles. I also found the regular, no indentation fender mounted on some 249s. The parts book only has two numbers listed and not other information on any variations; front 1,406001 and rear 1,407001. I assume this is for all interchangeable models; 149, 249, and Warrior models.

Can anyone share a little knowledge about which type of fender is actually correct and why in photos of restorations, I see both fender types being used?