Hello Poncho, I am by no means an expert, but i have asked allot of questions to collectors who personally knew ALMAR and many of them told me the same thing..,
First AL MAR was extremely thoughtful and giving to collectors/family/friends, & clubs.. Many entities who were associated with AL MAR had special variations of his knives made called club knives.. I know AL MAR was big time into Martial Arts and i have personally seen certain models of his knives with Martial ARTS ogranzations names and etc.. I have also seen special club knives...
As for the SERE thats a special knife of its own.. AL MAR made special variations for the military branches with SF emblems.. Some of them were numbered for clubs or military groups.. I was told if a SERE FOLDER has a "*" it could be a reject, but hard for me to believe someone would go thru all the hassle to stamp it..
As for the SF master jump emblem i have seen that on a few of his knives.. Folders and fixed.. Mr.Valade is still around and he will tell you what I have told you..
Wish i had the opportunity to have boughten a knife directly from him! Thats the fun with collecting AL MARS is finding the rare stuff.. whether it be military or club versions