Yes, the proben were on the Stiles site briefly as well as the unused Bayreuth insignia. I usually don't collect loose insignia but the Bayreuth set fit well in my collection. The proben are good examples of what to keep an eye out for, though these are not my property.
Good fortune in your collecting.
have to agree bad.
concur with other replies- they are bad
my Skype: warrelics